Ultrahigh climbing ladder for port grocery stacks

Abstract

The utility model discloses an ultrahigh climbing ladder for port grocery stacks, which relates to the technical field of port grocery stack climbing and comprises a chassis frame and a right trapezoid frame, supporting legs are arranged at the bottom of the left end of the chassis frame, traveling wheels are arranged at the bottom of the right end of the chassis frame, a ladder stand is arranged on the inclined surface of the right trapezoid frame, and universal wheels are arranged on the lower portion of a fixing shaft. A cross rod is arranged in the middle of the chassis frame, a pin seat capable of fixing the lever is arranged on the cross rod, a hydraulic telescopic column is arranged on the cross plate, a climbing ladder is hinged to the end, close to the inclined face, of the top platform of the right-angled trapezoid frame, and a supporting frame is hinged to the lower middle portion of the climbing ladder. The angle and the height of the climbing ladder are freely adjusted according to the height of a grocery stack, the climbing ladder leans on the grocery stack during use, the climbing ladder and the right trapezoid frame form a triangle, the climbing ladder is firm, stable and flexible, the labor intensity is reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of port general cargo stack climbing, in particular to an ultra-high climbing ladder for port general cargo stacks. Background Technique

[0002] In the handling of general cargo at the wharf, due to the different specifications and volumes of various goods, some goods are stacked outdoors on the cargo positions, and it is necessary for the loading and unloading workers to climb onto the stack to cooperate with the crane for operation. Some moisture-sensitive goods need to be covered with tarpaulins after the operation. When engaging in stack climbing operations, a climbing device is required to get on and off the stack. As a climbing ladder, the ladder has a very broad application prospect in the field of climbing operations because of its advantages of convenient and flexible operation, safety and high efficiency, and simple operation.

[0003] At present, the port industry mainly relies on traditional aluminum alloy ladders to get on and off the stack. Generally, 4-6-meter aluminum alloy straight ladders are used for low stacks, and 8.8-meter double-section aluminum alloy straight ladders are used for high stacks. The aluminum alloy straight ladders need to be used with the cooperation of multiple people, which poses potential safety hazards. The main disadvantages of using aluminum alloy straight ladders are as follows: at least 2 people are required to cooperate, 1 person holds the ladder, and 1 person climbs. Safety accidents caused by improper cooperation are common, which is a major safety risk source; the 8.8-meter double-section aluminum alloy is nearly 25 kilograms, which is heavy to use and requires multiple people to carry and lift it; during the telescoping process of the 8.8-meter double-section aluminum alloy straight ladder, hand injuries are likely to occur due to improper operation. To solve this problem and eliminate the climbing risk, there is an urgent need to develop a safe, practical and convenient general cargo stack climbing device. Content of the Utility Model

[0004] In order to overcome the defects of the prior art that require the cooperation of multiple people, low safety and heavy use, the utility model provides an ultra-high climbing ladder for port general cargo stacks.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an ultra-high climbing ladder for port general cargo stacks, including a chassis frame and a right-angled trapezoidal frame welded on the chassis frame. A leg is provided at the bottom left end of the chassis frame, and the leg is located below the inclined surface of the right-angled trapezoidal frame. A walking wheel is provided at the bottom right end of the chassis frame. A climbing ladder is provided on the inclined surface of the right-angled trapezoidal frame. A fixed shaft is provided on the bottom of the chassis frame near one side of the leg. A universal wheel is provided at the lower part of the fixed shaft, and the universal wheel is rotationally connected to the fixed shaft through a bushing. A lever is provided on the bushing. A cross bar is provided in the middle of the chassis frame, and a pin seat for fixing the lever is provided on the cross bar. A cross plate is provided on the bottom of the chassis frame near one side of the walking wheel, and a hydraulic telescopic column is provided on the cross plate. One end of the top platform of the right-angled trapezoidal frame near the inclined surface is hinged with a climbing ladder, and the middle and lower parts of the climbing ladder are hinged with a support frame, and the other end of the support frame is connected to the output end of the hydraulic telescopic column.

[0006] As a further improvement of the present utility model, guardrails are provided on both the front and rear sides of the climbing ladder and the access ladder.

[0007] As a further improvement of the present utility model, a chain is provided at the end of the lever, and the chain is fixed to the pin seat through a pin.

[0008] As a further improvement of the present utility model, the support frame is a fork-shaped frame.

[0009] As a further improvement of the present utility model, a self-locking device is provided on the traveling wheel.

[0010] As a further improvement of the present utility model, anti-slip pads are provided at the bottoms of the outriggers.

[0011] Compared with the prior art, the present utility model has the following beneficial effects: In this solution, through the cooperation of the stable chassis frame, the right-angled trapezoidal frame and the access ladder, it makes it safer for workers to get on and off the stack, eliminating the risk of high-altitude falling of operators; the angle and height of the access ladder can be freely adjusted according to the height of the general cargo stack. When in use, the access ladder leans against the general cargo stack and forms a triangle with the right-angled trapezoidal frame, which is firm and stable and has a high safety factor; it can be operated by a single person, is flexible and mobile, shortens the time for workers to get on and off the stack, reduces the labor intensity of workers, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following further describes the present utility model in conjunction with the drawings and specific embodiments.

[0013] Figure 1 It is a schematic structural diagram of a super-high access ladder for general cargo stacks of the present utility model.

[0014] In the figure: 1, chassis frame; 2, outrigger; 3, traveling wheel; 4, right-angled trapezoidal frame; 5, climbing ladder; 6, guardrail; 7, universal wheel; 8, fixed shaft; 9, shaft sleeve; 10, lever; 11, cross bar; 12, chain; 13, pin seat; 14, cross plate; 15, hydraulic telescopic column; 16, access ladder; 17, support frame; 18, anti-slip pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the technical solution and beneficial effects of the present utility model clearer and more understandable, the present utility model will be further described in detail below with specific embodiments.

[0016] Refer to Figure 1, an embodiment of the utility model discloses a super-high climbing ladder for general cargo stacks in ports, which includes a chassis frame 1 and a right-angled trapezoidal frame 4 welded to the chassis frame 1. A leg 2 is provided at the bottom left end of the chassis frame 1, and the leg 2 is located below the inclined surface of the right-angled trapezoidal frame 4. A walking wheel 3 is provided at the bottom right end of the chassis frame 1. A climbing ladder 5 is provided on the inclined surface of the right-angled trapezoidal frame 4. A fixed shaft 8 is provided on one side of the bottom of the chassis frame 1 close to the leg 2. A universal wheel 7 is provided at the lower part of the fixed shaft 8, and the universal wheel 7 is rotatably connected to the fixed shaft 8 through a bushing 9. A lever 10 is provided on the bushing 9. A cross bar 11 is provided in the middle of the chassis frame 1, and a pin seat 13 capable of fixing the lever 10 is provided on the cross bar 11. A cross plate 14 is provided on one side of the bottom of the chassis frame 1 close to the walking wheel 3, and a hydraulic telescopic column 15 is provided on the cross plate 14. One end of the top platform of the right-angled trapezoidal frame 4 close to the inclined surface is hinged with a climbing ladder 16, and the middle and lower part of the climbing ladder 16 is hinged with a support frame 17, and the other end of the support frame 17 is connected to the output end of the hydraulic telescopic column 15.

[0017] Among them, guardrails 6 are provided on the front and back sides of the climbing ladder 5 and the climbing ladder 16 to improve the safety and stability of workers climbing. When workers climb, they can put the safety belt on the guardrail 6 to prevent the risk of falling from a height.

[0018] The whole equipment is welded with strong round steel pipes and square steel pipes, which is both light and strong. A walking wheel 3 is provided at the bottom right end of the chassis frame 1. A universal wheel 7 is provided at the lower part of the fixed shaft 8, and the universal wheel 7 is rotatably connected to the fixed shaft 8 through a bushing 9. A lever 10 is provided on the bushing 9. A cross bar 11 is provided in the middle of the chassis frame 1, and a pin seat 13 capable of fixing the lever 10 is provided on the cross bar 11. When workers push the super-high climbing ladder to a suitable position, a self-locking device is provided on the walking wheel 3, and the climbing device is fixed through the self-locking device to prevent the displacement of the walking wheel 3 end. A chain 12 is provided at the end of the lever 10, and the chain 12 is fixed on the pin seat 13 through a bolt. Workers open the lever 10 from the pin seat 13, so that the leg 2 lands on the ground, and the universal wheel 7 is no longer stressed. The universal wheel 7 improves the mobility of the climbing device.

[0019] Workers climb up from the climbing ladder 5 on the inclined surface of the right-angled trapezoidal frame 4. According to the remaining height of the general cargo stack, the output end of the hydraulic telescopic column 15 extends upward and downward, and the climbing ladder 16 is slowly lifted through the support frame 17. When the required height is reached, the hydraulic telescopic column 15 stops working. The support frame 17 is a fork-shaped frame, and the fork-shaped frame structure is stable and reliable. The climbing ladder 16, the right-angled trapezoidal frame 4 and the general cargo stack form a triangular structure, which is firm, stable and has a high safety factor; it can be operated by one person, is flexible and mobile, shortens the time for workers to get on and off the stack, reduces the labor intensity of workers, and improves work efficiency.

[0020] An anti-slip pad 18 is provided at the bottom of the leg 2 to increase friction and prevent the chassis frame 1 from sliding after landing.

[0021] It should be understood that the specific embodiments described herein are only for understanding the present utility model and are not used to limit the present utility model. All other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.

Claims

1. A high-rise climbing ladder for general cargo stacks in ports, characterized in that: It includes a chassis frame (1) and a right trapezoidal frame (4) welded to the chassis frame (1). At the bottom left end of the chassis frame (1), there are support legs (2), and the support legs (2) are located below the inclined surface of the right trapezoidal frame (4). At the bottom right end of the chassis frame (1), there are traveling wheels (3). On the inclined surface of the right trapezoidal frame (4), there is a climbing ladder (5). On one side of the bottom of the chassis frame (1) close to the support legs (2), there is a fixed shaft (8). At the lower part of the fixed shaft (8), there is a universal wheel (7), and the universal wheel (7) is rotationally connected to the fixed shaft (8) through a bushing (9). On the bushing (9), there is a lever (10). In the middle of the chassis frame (1), there is a cross bar (11), and on the cross bar (11), there is a pin seat (13) capable of fixing the lever (10). On one side of the bottom of the chassis frame (1) close to the traveling wheels (3), there is a cross plate (14), and on the cross plate (14), there is a hydraulic telescopic column (15). At one end of the top platform of the right trapezoidal frame (4) close to the inclined surface, there is an elevated ladder (16) hinged. At the middle and lower part of the elevated ladder (16), there is a support frame (17) hinged, and the other end of the support frame (17) is connected to the output end of the hydraulic telescopic column (15).

2. The super-high climbing ladder for general cargo stacks in a port according to claim 1, wherein: Guardrails (6) are provided on the front and back sides of the climbing ladder (5) and the elevated ladder (16).

3. A kind of port general cargo stack super-high climbing ladder according to claim 2, characterized in that: At the end of the lever (10), there is a chain (12), and the chain (12) is fixed to the pin seat (13) through a cotter pin.

4. The super-high climbing ladder for general cargo stacks in a port according to claim 3, characterized in that: The support frame (17) is a fork-shaped frame.

5. The super-high climbing ladder for general cargo stacks in a port according to claim 4, characterized in that: A self-locking device is provided on the traveling wheel (3).

6. The super-high step ladder for general cargo stacks in a port according to claim 5, characterized in that: Anti-slip pads (18) are provided at the bottom of the support legs (2).

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