Protective fence for movable ladder belt of tank car matched with loading arm
By designing a protective fence that includes a fixed base plate, protective components, and auxiliary components, the adaptability and stability issues of the protective fence for the mobile ladder belt of the loading arm tanker are solved on different equipment, achieving flexible adjustment and improved safety.
Patent Information
- Application Number
- CN202520648525.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-08
AI Technical Summary
The mobile ladder with protective railings for loading arms and tank trucks cannot effectively adapt to different operating scenarios and equipment requirements, and suffers from insufficient flexibility and stability.
A protective fence was designed, comprising a fixed base plate, protective components, movable ladders, aluminum alloy personnel protective fence, auxiliary components, brackets, chain fixing buckles, and other structures. Through the combination of these components, the height and angle of the fence can be flexibly adjusted, enhancing stability and protective effect.
The protective fence achieves adaptability and stability on different devices, reducing operational risks and improving work efficiency and safety.
Smart Images

Figure CN223892443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fence technology, specifically to a protective fence for a mobile ladder belt on a loading arm tanker. Background Technology
[0002] An loading arm is a device used for loading and unloading liquids or gases. It is usually used in conjunction with a tank truck to load and unload materials. To improve the safety and convenience of operation, a movable ladder and protective railing are sometimes installed on the tank truck.
[0003] However, the movable ladder with protective railing of the loading arm and tank truck cannot effectively adapt to different operating scenarios and equipment requirements in actual use. At the same time, the movable ladder with protective railing of the loading arm and tank truck lacks flexibility and stability during operation, and is prone to shaking or deformation, which increases the operational risk.
[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0005] In view of the problems in the related technologies, this utility model proposes a protective fence for the movable ladder of a loading arm tanker, so as to overcome the above-mentioned technical problems existing in the existing related technologies.
[0006] Therefore, the specific technical solution adopted by this utility model is as follows:
[0007] A mobile ladder with protective railing for a loading arm tanker includes a fixed base plate. A protective component is provided on one side of the fixed base plate. The protective component includes multiple uprights fixedly installed on one side of the fixed base plate. A protective groove is opened on one side of the multiple uprights. An aluminum alloy protective railing for the mobile ladder is hinged to the inner wall of the protective groove. A handrail for the mobile ladder is hinged to one end of the aluminum alloy protective railing for the mobile ladder. One end of the handrail is connected to the upright.
[0008] Furthermore, in order to better maintain the balance of the mobile ladder with protective railing for the loading arm tanker, auxiliary components are provided on the side of the personnel aluminum alloy protective railing of the mobile ladder. The auxiliary components include a connecting frame fixedly installed on the side of the personnel aluminum alloy protective railing of the mobile ladder. The inner wall of the connecting frame is hinged with a mobile ladder support and balance device. One end of the mobile ladder support and balance device is connected to a connecting plate, and one side of the connecting plate is fixedly connected to the column.
[0009] Furthermore, in order to better improve the stability of the anti-slip steel grating steps of the movable ladder, a bracket is installed on the aluminum alloy guardrail of the movable ladder. One side of the bracket is connected to the lower end of the movable ladder handrail, and the other end of the bracket is connected to the aluminum alloy guardrail of the movable ladder.
[0010] Furthermore, to better prevent sparks from metal collisions, a rubber buffer sleeve is installed at the front end of one of the non-slip steel grating steps of the movable ladder.
[0011] Furthermore, in order to better improve the stability between the column and the support, the column and the support are equipped with chain fixing buckles, and the chain fixing buckles are equipped with chains.
[0012] Furthermore, in order to better install and fix the base plate, the base plate is provided with pre-drilled holes that are evenly distributed.
[0013] The beneficial effects of this utility model are as follows:
[0014] (1) By setting protective components on the fixed base plate, adjustments can be made according to the shape and height of different tank trucks to adapt to different height requirements, thereby effectively solving the problem that existing protective fences cannot adapt to the needs of different equipment. At the same time, the auxiliary components set on the aluminum alloy protective fence of the movable ladder can effectively maintain the balance of the protective fence. During operation, even if there is an impact from external force or shaking caused by personnel walking, the movable ladder support balance device can be quickly adjusted to prevent the protective fence from shaking or deforming excessively, thereby greatly improving the stability of the protective fence.
[0015] (2) By setting chain fixing buckles and chains on the columns and supports, the stability of the protective fence is not only enhanced, but also made it more convenient and flexible to adjust or move the protective fence when needed, which improves work efficiency and reduces the safety risks caused by improper installation or adjustment. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a structural schematic diagram of a mobile ladder with protective railing for a loading arm tanker according to an embodiment of the present utility model;
[0018] Figure 2 This is a structural schematic diagram of a mobile ladder with protective railing for a loading arm tanker according to an embodiment of the present utility model;
[0019] Figure 3 yes Figure 2 Enlarged structural diagram at point a;
[0020] Figure 4 yes Figure 2Enlarged structural diagram at point b.
[0021] In the picture:
[0022] 1. Fixed base plate; 2. Protective components; 201. Upright; 202. Aluminum alloy protective fence for personnel on the movable ladder; 203. Movable ladder handrail; 3. Auxiliary components; 301. Connecting frame; 302. Movable ladder support and balance device; 303. Connecting plate; 4. Bracket; 5. Anti-slip steel grating steps for the movable ladder; 6. Rubber buffer sleeve for the movable ladder; 7. Chain fixing buckle; 8. Chain; 9. Reserved installation holes. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example 1:
[0025] like Figures 1-4 As shown, a protective fence for the movable ladder of an loading arm tanker according to an embodiment of the present utility model includes a fixed base plate 1. A protective component 2 is provided on one side of the fixed base plate 1. The protective component 2 includes a plurality of columns 201 fixedly provided on one side of the fixed base plate 1. There are two columns 201, which are used to provide auxiliary support for the protective fence for the movable ladder of the loading arm tanker. A protective groove is opened on one side of the plurality of columns 201. An aluminum alloy protective fence 202 for the movable ladder personnel is hinged to the inner wall of the protective groove. A movable ladder handrail 203 is hinged to one end of the movable ladder personnel aluminum alloy protective fence 202. One end of the movable ladder handrail 203 is connected to the column 201.
[0026] The column 201 and the bracket 4 are provided with chain fixing buckles 7, and the chain fixing buckles 7 are provided with chains 8 to provide additional locking and prevent accidental folding. The fixed base plate 1 has reserved mounting holes 9 that are evenly distributed.
[0027] Example 2:
[0028] like Figures 1-4As shown in the figure, according to an embodiment of the present utility model, a mobile ladder with protective railing is provided on the side of the mobile ladder personnel aluminum alloy protective railing 202. The auxiliary component 3 includes a connecting frame 301 fixedly installed on the side of the mobile ladder personnel aluminum alloy protective railing 202. The inner wall of the connecting frame 301 is hinged with a mobile ladder support and balance device 302. The mobile ladder support and balance device 302 is a hydraulic cylinder or other support and balance device, used to adjust the stability of the ladder body in real time and improve safety. One end of the mobile ladder support and balance device 302 is connected to a connecting plate 303, and one side of the connecting plate 303 is fixedly connected to the column 201.
[0029] The movable ladder personnel aluminum alloy protective fence 202 is equipped with a bracket 4. One side of the bracket 4 is connected to the lower end of the movable ladder handrail 203 to a movable ladder anti-slip steel grating step 5. There are four movable ladder anti-slip steel grating steps 5, which can be increased according to actual needs. They are used for operators to operate on the top of the tank truck. One end of the bracket 4 is connected to the movable ladder personnel aluminum alloy protective fence 202. One of the movable ladder anti-slip steel grating steps 5 is equipped with a movable ladder hitch rubber buffer sleeve 6 at the front end to reduce the risk of sparks and the probability of slipping.
[0030] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.
[0031] In summary, with the help of the above-mentioned technical solution of this utility model, during installation, the fixed base plate 1 is fixed to the tank truck or work platform through the reserved mounting holes 9, providing a stable foundation for the overall structure. During use, the worker can unfold the movable ladder personnel aluminum alloy protective fence 202 outwards around the hinge point to the work position, and lock it with the chain 8 and chain fixing buckle 7 to prevent accidental folding. The movable ladder handrail 203 unfolds synchronously with the movable ladder personnel aluminum alloy protective fence 202, providing grip support for the operator. When the movable ladder personnel aluminum alloy protective fence 202 is unfolded, the support balance device automatically adjusts its length to keep the ladder level and prevent swaying. The surface of the movable ladder anti-slip steel grating step 5 is a steel grating structure, providing high friction to prevent the operator from slipping. The movable ladder support is installed at the front end of the movable ladder anti-slip steel grating step 5. The rubber buffer sleeve 6 absorbs impact when the movable ladder personnel aluminum alloy protective fence 202 comes into contact with the tank truck, reducing the risk of metal collision noise and sparks. Each connection point or hinge point (such as the movable ladder personnel aluminum alloy protective fence 202 and the column 201, the movable ladder handrail 203 and the bracket 4) allows the ladder to be flexibly adjusted according to the height of the tank truck and the working angle. The movable ladder support balance device 302 can dynamically adapt to different tilt angles, ensuring that the movable ladder anti-slip steel grating steps 5 are always on a safe operating plane. After the work is completed, the chain 8 is released, the movable ladder support balance device 302 is retracted, and the movable ladder personnel aluminum alloy protective fence 202 can be folded back into the protective groove of the column 201 to reduce the space occupied. The movable ladder rubber buffer sleeve 6 and the movable ladder anti-slip steel grating steps 5 protect the surface of the device from wear when stored.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A mobile ladder with protective railing for a loading arm and tanker truck, characterized in that, It includes a fixed base plate (1), and a protective component (2) is provided on one side of the fixed base plate (1). The protective component (2) includes multiple columns (201) fixedly installed on one side of the fixed base plate (1), a protective groove opened on one side of the multiple columns (201), and a movable ladder personnel aluminum alloy protective fence (202) hinged to the inner wall of the protective groove. A movable ladder handrail (203) is hinged to one end of the movable ladder personnel aluminum alloy protective fence (202), and one end of the movable ladder handrail (203) is connected to the column (201).
2. The mobile ladder with protective railing for a loading arm tanker as described in claim 1, characterized in that, The side of the movable ladder aluminum alloy protective fence (202) is provided with an auxiliary component (3). The auxiliary component (3) includes a connecting frame (301) fixedly installed on the side of the movable ladder aluminum alloy protective fence (202). The inner wall of the connecting frame (301) is hinged with a movable ladder support and balance device (302). One end of the movable ladder support and balance device (302) is connected to a connecting plate (303). One side of the connecting plate (303) is fixedly connected to the column (201).
3. The mobile ladder with protective railing for a loading arm tanker as described in claim 2, characterized in that, A bracket (4) is installed on the aluminum alloy protective fence (202) for the movable ladder. One side of the bracket (4) is connected to the lower end of the movable ladder handrail (203) and a movable ladder anti-slip steel grid step (5). One end of the bracket (4) is connected to the aluminum alloy protective fence (202) for the movable ladder.
4. The mobile ladder with protective railing for a loading arm tanker as described in claim 3, characterized in that, One of the movable ladder anti-slip steel grating steps (5) has a movable ladder mounting rubber buffer sleeve (6) installed at the front end.
5. The mobile ladder with protective railing for a loading arm tanker as described in claim 4, characterized in that, The column (201) and the bracket (4) are provided with chain fixing buckles (7), and the chain fixing buckles (7) are provided with chains (8).
6. The mobile ladder with protective railing for a loading arm tanker as described in claim 5, characterized in that, The base plate (1) has pre-drilled mounting holes (9) that are evenly distributed.