Anti-pinch easy-to-store triangular climbing frame

Abstract

The utility model belongs to the technical field of tools, and particularly relates to an anti-pinch easily-stored triangular climbing frame which comprises a straight ladder, a triangular positioning plate, a T-shaped nut and a handle, the straight ladder is divided into a long ladder and a short ladder, the long ladder is fixedly connected with the triangular positioning plate, and the upper end of the short ladder is movably connected with the triangular positioning plate through a bolt and a nut. A semi-open counter bore is formed in the portion, close to the short ladder, of the lower end of the triangular positioning plate, the T-shaped nut is embedded into the counter bore and is in sliding fit with the inner wall of the counter bore, one end of the T-shaped nut is fixed to the metal nut penetrating through the short ladder in an embedded mode, and a polygonal groove is formed in the end face of the other end of the T-shaped nut. And the polygonal boss is fixedly clamped with the polygonal groove of the T-shaped nut to drive the short ladder to rotate.

Description

Technical Field

[0001] The utility model belongs to the technical field of tools, and in particular relates to an anti-pinching and easy-to-store triangular climbing frame. Background Art

[0002] As a common tool, triangular climbing frames are widely used in various scenes in life. Commonly used triangular climbing frames are generally composed of two pairs of straight ladders and a limit rotating rod. For example, the Chinese invention patent application with application number 202110481528.8 and patent name is a triangular ladder that can prevent injuries. The triangular ladder body is composed of two pairs of straight ladders, and the limit rotating rod is movably connected between the two pairs of straight ladders to play a limiting and stabilizing role in the open state. When the triangular ladder is folded, the limit rotating rod drives the straight ladder to fold and merge through the pin shaft. In this process, the operator's hands are easily pinched by the angle between the limit rotating rod and the straight ladder, which makes the operation inconvenient and has safety hazards. Utility Model Content

[0003] The utility model aims to address the deficiencies in the prior art and to provide an anti-pinch and easy-to-store triangular climbing frame which is easy to operate, easy to store and can prevent pinching.

[0004] The technical solution to achieve the purpose of this utility model is:

[0005] A triangular climbing frame that is easy to store to prevent pinching, comprises a straight ladder, a triangular positioning plate, a T-shaped nut and a handle, and is characterized in that the straight ladder is divided into a long ladder and a short ladder, the upper end of the long ladder is fixedly connected to the triangular positioning plate by a plurality of screws, the upper end of the short ladder is movably connected to the triangular positioning plate by bolts and nuts, a countersunk hole is penetrated through the end of the lower end of the triangular positioning plate away from the long ladder, the countersunk hole is semi-open, and an opening is provided in the direction of the long ladder, the T-shaped nut is embedded in the countersunk hole and slidably cooperates with the inner wall of the countersunk hole, one end of the T-shaped nut is embedded and fixed with a metal nut that penetrates the short ladder, and the other end face is provided with a polygonal groove, and the end face of the handle is provided with a polygonal boss that cooperates with the polygonal groove, and the polygonal boss is fixedly clamped with the polygonal groove of the T-shaped nut.

[0006] Preferably, the polygonal groove is a square and the polygonal boss is a matching square boss.

[0007] Preferably, the bottom of the ladder is equipped with a non-slip mat.

[0008] Preferably, the upper end surface of the short ladder touches below the upper end of the long ladder.

[0009] The beneficial effects of the utility model compared with the prior art are:

[0010] The short ladder is opened and folded by operating the handle to prevent the hand from being pinched by the angle between the rotating rod and the straight ladder during operation. The semi-open countersunk hole and T-nut sliding fit play a stabilizing and limiting role, thereby improving the stability and safety performance of the triangular climbing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a structural schematic diagram of the T-shaped nut of the utility model;

[0013] Figure 3 It is a structural schematic diagram of the handle of the utility model.

[0014] In the figure: 1. short ladder; 2. long ladder; 3. triangular positioning plate; 4. T-nut; 5. handle; 6. anti-slip pad; 7. polygonal groove; 8. polygonal boss. DETAILED DESCRIPTION

[0015] like Figure 1-3 The illustrated anti-pinch easy-to-store triangular climbing frame comprises a straight ladder, a triangular positioning plate 3, a T-nut 4 and a handle 5. The straight ladder is divided into a long ladder 2 and a short ladder 1. The upper end of the long ladder 2 is fixedly connected to the triangular positioning plate 3 by a plurality of screws, and the upper end of the short ladder 1 is movably connected to the triangular positioning plate 3 by bolts and nuts. A countersunk hole is penetrated at one end of the lower end of the triangular positioning plate 3 away from the long ladder 2. The countersunk hole is semi-open, and an opening is provided in the direction of the long ladder 2. The T-nut 4 is embedded in the countersunk hole and slidably cooperates with the inner wall of the countersunk hole. One end of the T-nut 4 is embedded and fixed with a metal nut penetrating the short ladder 1. When the triangular climbing frame is opened, the short ladder 1 It is opened outward along the plane direction of the triangular positioning plate 3 with the connection point with the triangular positioning plate 3 as the center of the circle, and the T-nut 4 is embedded in the countersunk hole from the countersunk hole opening to limit and stabilize the short ladder 1. A polygonal groove 7 is provided on the end face of the other end of the T-nut 4, and a polygonal boss 8 matching the polygonal groove 7 is provided at one end of the handle 5. The handle 5 is fixedly mounted with the polygonal groove 7 of the T-nut 4 through the polygonal boss 8. When the triangular ladder is opened or folded, the T-nut 4 is driven by the handle 5 to drive the short ladder 1 to move, thereby avoiding the situation where the straight ladder is held by hand when the triangular climbing frame is folded, which may cause the short ladder 1 to be easily clamped by the closing straight ladder.

[0016] The polygonal groove 7 is a square, and the polygonal boss 8 is a matching square boss. The polygonal groove 7 and the polygonal boss 8 can also be mutually matching triangles, rectangles, rhombuses, trapezoids, etc.

[0017] The bottom of the straight ladder is provided with an anti-skid pad 6 to increase the friction between the triangular climbing frame and the ground and improve the safety performance.

[0018] The upper end surface of the short ladder 1 touches below the upper end of the long ladder 2, thereby improving the stability of the triangular climbing frame.

Claims

1. An anti-pinch easy-to-store triangular climbing frame, comprising a straight ladder, a triangular positioning plate (3), a T-shaped nut (4) and a handle (5), wherein the straight ladder is divided into a long ladder (2) and a short ladder (1), wherein the upper end of the long ladder (2) is fixedly connected to the triangular positioning plate (3) by a plurality of screws, and the upper end of the short ladder (1) is movably connected to the triangular positioning plate (3) by bolts and nuts, and wherein: A countersunk hole is formed through one end of the lower end of the triangular positioning plate (3) away from the long ladder (2), and the countersunk hole is provided with an opening in the direction of the long ladder (2). A T-shaped nut (4) is embedded in the countersunk hole and slidably cooperates with the inner wall of the countersunk hole. One end of the T-shaped nut (4) is embedded and fixed with a metal nut that passes through the short ladder (1). A polygonal groove (7) is provided on the end surface of the other end of the T-shaped nut (4). A polygonal boss (8) that cooperates with the polygonal groove (7) is provided at one end of the handle (5). The handle (5) is fixedly mounted by the polygonal boss (8) and the polygonal groove (7) of the T-shaped nut (4).

2. The anti-pinch and easy-to-store triangular climbing frame according to claim 1, characterized in that: The polygonal groove (7) is a square shape, and the polygonal boss (8) is a matching square boss.

3. The anti-pinch and easy-to-store triangular climbing frame according to claim 2, characterized in that: The bottom of the ladder is provided with an anti-skid pad (6).

4. The anti-pinch and easy-to-store triangular climbing frame according to claim 2, characterized in that: The upper end surface of the short ladder (1) touches the lower part of the upper end of the long ladder (2).

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