Aluminum alloy profile for wheelchair armrest frame

Abstract

An aluminum alloy profile for a wheelchair armrest frame is of a quadrilateral frame structure and comprises a right side (1), an upper side (2), a left side (3) and a bottom side (4), a leftward horizontal extending part (5) is arranged on the lower portion of the inner side of the right side (1), the upper side (2) is in a circular arc shape with the middle protruding outwards, a rightward horizontal extending part (5) is arranged on the lower portion of the inner side of the left side (3), and an upwards-concave isosceles trapezoid groove (6) is formed in the middle of the bottom side (4). An upward-convex isosceles trapezoid (7) is arranged on the upper face of the upward-concave isosceles trapezoid groove (6), the two waists of the upward-concave isosceles trapezoid groove (6) and the two waists of the upward-convex isosceles trapezoid (7) are located on the same straight line, a downward-concave isosceles trapezoid groove (8) is formed in the upper edge of the upward-convex isosceles trapezoid (7), and an extending part (9) extending towards the upper left portion is arranged in the middle of the right side of the downward-concave isosceles trapezoid groove (8). The utility model has the advantages of simple process, light weight and less material consumption; transportation and installation are convenient; and no rust is generated, and no pollution is caused to the environment.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy profiles, in particular to an aluminum alloy profile for a wheelchair armrest frame. Background Art

[0002] Existing wheelchair armrest frames are all made of steel pipes. Firstly, the process is complex, the weight is large, the material consumption is high, and transportation and installation are inconvenient. Secondly, it is easy to rust and pollute the environment. Summary of the Invention

[0003] Aiming at the deficiencies of existing wheelchair armrest frames made of steel pipes, with complex processes, large weight, high material consumption, inconvenient transportation and installation, and easy rusting and environmental pollution, the utility model provides an aluminum alloy profile for a wheelchair armrest frame.

[0004] An aluminum alloy profile for a wheelchair armrest frame is a quadrilateral frame structure, including a right side, an upper side, a left side, and a bottom side. The right side is vertical, and there is a horizontally extending part to the left at the lower part inside the right side. The upper side is a circular arc protruding in the middle. The left side is vertical, and there is a horizontally extending part to the right at the lower part inside the left side. The bottom side is horizontal, and the middle of the bottom side is an isosceles trapezoidal groove concave upward. There is an isosceles trapezoid protruding upward above the isosceles trapezoidal groove concave upward. The two waists of the isosceles trapezoidal groove concave upward and the isosceles trapezoid protruding upward are on the same straight line. The upper side of the isosceles trapezoid protruding upward is an isosceles trapezoidal groove concave downward. There is a protruding part to the upper left in the middle of the right side of the isosceles trapezoidal groove concave downward. The protruding part to the upper left is perpendicular to the right side of the isosceles trapezoidal groove concave downward.

[0005] Advantages of the utility model:

[0006] 1. Simple process, light weight, and less material consumption:

[0007] 2. Convenient for transportation and installation;

[0008] 3. Does not rust and will not pollute the environment. Description of the Drawings

[0009] Figure 1 : It is the end view of the utility model.

[0010] In the figure: 1. Right side; 2. Upper side; 3. Left side; 4. Bottom side; 5. Horizontally extending part; 6. Isosceles trapezoidal groove concave upward; 7. Isosceles trapezoid protruding upward; 8. Isosceles trapezoidal groove concave downward; 9. Protruding part to the upper left. Detailed Description of the Preferred Embodiment

[0011] The following further describes the present invention in detail with reference to the drawings and specific embodiments.

[0012] An aluminum alloy profile for a wheelchair armrest frame, which is a quadrilateral frame structure, includes a right side 1, an upper side 2, a left side 3, and a bottom side 4. The right side 1 is vertical, and there is a horizontally protruding part 5 extending leftward at the lower part inside the right side 1. The upper side 2 is a circular arc protruding in the middle. The left side 3 is vertical, and there is a horizontally protruding part 5 extending rightward at the lower part inside the left side 3. The bottom side 4 is horizontal, and the middle of the bottom side 4 is an isosceles trapezoidal groove 6 concave upward. There is a waist trapezoid 7 protruding upward above the isosceles trapezoidal groove 6 concave upward. The two waists of the isosceles trapezoidal groove 6 concave upward and the waist trapezoid protruding upward are on the same straight line. The upper side of the waist trapezoid 7 protruding upward is an isosceles trapezoidal groove 8 concave downward. There is a protruding part 9 extending left-upper at the middle of the right side of the isosceles trapezoidal groove 8 concave downward. The protruding part 9 extending left-upper is perpendicular to the right side of the isosceles trapezoidal groove 8 concave downward.

Claims

1. An aluminum alloy profile for a wheelchair armrest frame, which is a quadrilateral frame structure, includes a right side (1), an upper side (2), a left side (3) and a bottom side (4), and is characterized in that: The right side (1) is vertical, and there is a horizontally extending part (5) pointing left at the lower inner side of the right side (1). The upper side (2) is a circular arc protruding outwards in the middle. The left side (3) is vertical, and there is a horizontally extending part (5) pointing right at the lower inner side of the left side (3). The bottom side (4) is horizontal, and there is an isosceles trapezoidal groove (6) concave upwards in the middle of the bottom side (4). There is a trapezoid (7) convex upwards above the isosceles trapezoidal groove (6) concave upwards. The two waists of the isosceles trapezoidal groove (6) concave upwards and the trapezoid (7) convex upwards are on the same straight line. The upper side of the trapezoid (7) convex upwards is an isosceles trapezoidal groove (8) concave downwards. There is a protruding part (9) pointing left upwards in the middle of the right side of the isosceles trapezoidal groove (8) concave downwards. The protruding part (9) pointing left upwards is perpendicular to the right side of the isosceles trapezoidal groove (8) concave downwards.

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