Linkage guardrail device

Abstract

The utility model discloses a linkage guardrail device which comprises installation seats longitudinally and evenly arranged on the top of a vehicle body, vertical rods are movably connected to the installation seats, a transverse rod is movably connected to the top ends of the vertical rods, a fixed ladder is fixedly installed at the tail of the vehicle body, and the vertical rod at the leftmost end is fixedly connected with a first connecting rod through a connecting rod. The tail end of the first connecting rod is movably connected with the top end of the second connecting rod, the tail end of the second connecting rod is movably connected with the movable ladder, the top end of the movable ladder is fixedly provided with a connecting plate, the connecting plate is connected with a rotating oil cylinder, the tail end of the fixed ladder is fixedly provided with a mounting plate, and the rotating oil cylinder is mounted on the mounting plate. The movable ladder is driven by the rotating oil cylinder to rotate, the guardrail on the top is lifted in a linkage mode, workers do not need to climb on a car roof and then lift the guardrail, and labor is saved.

Description

Technical Field

[0001] The utility model relates to a protective device, in particular to a linkage guardrail device. Background Art

[0002] Some existing transport vehicles, such as liquid tankers and powder and granular material transporters, sometimes require rooftop operations. These vehicles typically require rooftop guardrails and rear-mounted ladders. To ensure vehicle accessibility, the guardrails are typically stowed when not in use. Currently, these guardrails and ladders are installed separately, requiring operators to climb onto the roof using the ladder before raising the guardrails. This operation poses a safety hazard to operators. Summary of the Invention

[0003] The utility model is to solve the above-mentioned shortcomings and provides a linkage guardrail device, which comprises a mounting seat uniformly arranged longitudinally on the top of the vehicle body, a vertical rod movably connected to the mounting seat, a cross rod movably connected to the top of the vertical rod, a fixed ladder fixedly installed at the rear of the vehicle body, the vertical rod at the leftmost end is fixedly connected to the first connecting rod through a connecting rod, the end of the first connecting rod is movably connected to the top of the second connecting rod, the end of the second connecting rod is movably connected to the movable ladder, the top of the movable ladder is fixedly provided with a connecting plate, the connecting plate is connected to a rotating oil cylinder, the end of the fixed ladder is fixedly provided with a mounting plate, and the rotating oil cylinder is installed on the mounting plate.

[0004] In order to improve the safety of the workers when they step onto the roof, a handrail is fixedly installed on the second connecting rod.

[0005] The utility model has the following beneficial effects: the linked guardrail raises the top guardrail by rotating the hydraulic cylinder to drive the ladder, eliminating the need for workers to climb onto the roof and then raise the guardrail. Furthermore, since the linked raising of the guardrail and the ladder is laborious, using the rotary hydraulic cylinder to open or retract the guardrail and the ladder saves effort, eliminating the need for workers to laboriously pull the ladder to raise the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0007] Figure 1 It is a structural schematic diagram of the utility model after the guardrail is raised.

[0008] Figure 2 It is a structural schematic diagram of the utility model when the guardrail is in the process of being folded up.

[0009] Figure 3 It is a structural schematic diagram of the utility model after the guardrail is folded.

[0010] In the figure: mounting base 1, vertical rod 2, horizontal rod 3, connecting rod 1 4, connecting rod 5, handrail 7, mounting plate 8, rotating cylinder 9, connecting plate 10, movable ladder 11, fixed ladder 12, connecting rod 2 13. DETAILED DESCRIPTION

[0011] The following diagrams illustrate various embodiments of the present invention. For clarity, many physical details will be included in the following description. However, it should be understood that these physical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0012] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0013] like Figures 1 to 3 As shown, a linkage guardrail device comprises a mounting base 1 uniformly arranged longitudinally on the top of the vehicle body, a vertical rod 2 movably connected to the mounting base 1, a cross rod 3 movably connected to the top of the vertical rod 2, a fixed ladder 12 is fixedly installed at the rear of the vehicle body, the vertical rod 2 at the leftmost end is fixedly connected to the connecting rod 1 4 through a connecting rod 5, the end of the connecting rod 1 4 is movably connected to the top of the connecting rod 2 13, the end of the connecting rod 2 13 is movably connected to the movable ladder 11, the top of the movable ladder 11 is fixedly provided with a connecting plate 10, the connecting plate 10 is connected to the rotating oil cylinder 9, the end of the fixed ladder 12 is fixedly provided with a mounting plate 8, and the rotating oil cylinder 9 is installed on the mounting plate 8.

[0014] Furthermore, an armrest 7 is fixedly mounted on the second connecting rod 13 .

[0015] During operation, the rotary cylinder 9 rotates, driving the ladder 11 to reverse. The ladder 11 then drives the connecting rod 1 4 through the connecting rod 2 13, and the connecting rod 1 4 drives the vertical rod 2 to gradually stand up. This achieves the purpose of opening the ladder 11 to raise the guardrail, and workers no longer need to climb onto the roof and manually raise the guardrail. To ensure the passability of vehicles, when the guardrail needs to be retracted, the operation is reversed to the opening operation. At the same time, the ladder 11 can be folded, making the rear of the vehicle passable.

[0016] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A linkage guardrail device, comprising a mounting base (1) uniformly arranged longitudinally on the top of a vehicle body, a vertical rod (2) movably connected to the mounting base (1), a cross rod (3) movably connected to the top of the vertical rod (2), and a fixed ladder (12) fixedly installed at the rear of the vehicle body, characterized in that: The vertical rod (2) at the leftmost end is fixedly connected to the connecting rod 1 (4) through the connecting rod (5), the end of the connecting rod 1 (4) is movably connected to the top of the connecting rod 2 (13), the end of the connecting rod 2 (13) is movably connected to the movable ladder (11), the top of the movable ladder (11) is fixedly provided with a connecting plate (10), the connecting plate (10) is connected to the rotating oil cylinder (9), the end of the fixed ladder (12) is fixedly provided with a mounting plate (8), and the rotating oil cylinder (9) is installed on the mounting plate (8).

2. A linkage guardrail device according to claim 1, characterized in that: An armrest (7) is fixedly mounted on the second connecting rod (13).

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