Hollow barrier arm with elliptical section
By designing an elliptical cross-section hollow barrier arm and setting specific structures inside and outside it, the problem of swaying and sagging of the barrier arm during high-speed lifting and lowering was solved, reducing weight and power consumption, and improving safety and visibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-14
AI Technical Summary
The existing barrier arm has problems of swaying and sagging deformation during high-speed lifting and lowering, and its large weight leads to increased motor power and increased power consumption.
Design an elliptical cross-section hollow railing arm with internal cross-shaped stiffening ribs and a lightweight flexible material and reflective film wrapped on the outer surface. The reflective film has a luminous coating.
It improves the bending and torsional resistance and stability of the barrier arm, reduces swaying and sagging, lowers weight and motor power consumption, and enhances safety and visibility.
Smart Images
Figure CN224119471U_ABST
Abstract
Description
Technical Field
[0001] This utility model patent relates to the field of barrier arm technology for barrier machines, specifically to a hollow barrier machine arm with an elliptical cross section. Background Technology
[0002] The barrier arm is mainly used in conjunction with barrier gates and management control systems, and is an important component for managing vehicle access. After a vehicle has undergone information verification or payment, the barrier arm raises, allowing the vehicle to pass. Among existing types of barrier arms, hollow circular cross-section barrier arms are prone to swaying and sagging deformation due to vertical impact forces during high-speed raising and lowering, especially noticeable with high-speed barrier gates where the speed is even faster. Solid circular, hexagonal, and octagonal hollow barrier arms, due to their cross-sectional dimensions and complex structure, have a larger self-weight, limiting the extendable length of a single barrier arm. Furthermore, the increased self-weight and torque also increase the motor power of the barrier gate, increasing energy consumption. Utility Model Content
[0003] In order to solve the problems mentioned in the background art, the present invention proposes a hollow railing arm with an elliptical cross section.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] An elliptical cross-section hollow guardrail arm includes:
[0006] The main arm of the guardrail is configured with an elliptical cross-section.
[0007] A cross-shaped stiffening rib is added inside the cavity of the main section of the guardrail arm.
[0008] The main arm of the barrier gate is connected to the rotating shaft of the barrier gate via a metal clamp that is easy to replace;
[0009] The outer surface of the main arm of the guardrail is wrapped with a layer of lightweight and flexible material;
[0010] The lightweight flexible material has an elliptical inner cross-section, while the outer cross-section can be flexibly designed according to actual needs; it is mainly elliptical or circular.
[0011] The outer surface of the lightweight flexible material is provided with a reflective film.
[0012] The barrier arm according to this solution has at least the following technical advantages:
[0013] The main arm of this barrier arm has an elliptical cross section. Based on the bending section modulus and torsional stiffness characteristics of ellipses and circles, the polar moment of inertia and bending section modulus of an ellipse with the same cross-sectional area are larger in the direction of the major semi-axis, thus having better bending and torsional resistance and being able to better withstand the vertical impact force during the raising and lowering of the barrier arm.
[0014] Furthermore, designing the main arm of the barrier arm as a hollow section reduces weight compared to a solid section, thus minimizing sagging due to its own weight. This design also incorporates cross-shaped stiffening ribs within the elliptical cavity. This design disperses and absorbs impact forces, reducing arm swaying under stress and improving the stability and durability of the barrier arm. Lightweight construction also reduces motor power and energy consumption. The vertical ribs within the elliptical cavity primarily prevent natural sagging and deformation of the barrier arm during high-speed lifting and lowering; the horizontal ribs primarily prevent arm swaying, while the vertical and horizontal ribs also reinforce each other for support.
[0015] As a further improvement of this utility model, the outer surface of the main rod is wrapped with a lightweight and flexible material.
[0016] Since the main arm of the barrier gate is generally made of aluminum alloy or carbon fiber composite material, which has high hardness, there is a risk of scratching vehicles and hitting people in daily use. Wrapping its surface with a lightweight and flexible material can provide a buffering effect when the barrier gate malfunctions or a vehicle runs through the barrier, reducing damage to vehicles and people and effectively improving safety in daily use.
[0017] As a further improvement of this utility model, the reflective film is a dyed reflective film.
[0018] Because the reflective film is a dyed reflective film, it can enhance contrast and visibility, making it more conspicuous on the road, improving recognition, enabling drivers to identify it in time, and further improving driving safety.
[0019] As a further improvement of this utility model, the reflective film is provided with a luminescent coating.
[0020] Because the reflective film has a luminescent coating, it actively emits light when vehicle headlights do not illuminate the guardrail arm, allowing drivers to spot the guardrail earlier, control their speed in advance, and reduce safety risks. This effect is particularly noticeable at night when the guardrail operator and vehicle are not aligned, such as when the operator is located at a bend, and vehicle headlights do not illuminate the guardrail arm. It also ensures that pedestrians and cyclists without nighttime lighting can promptly spot the guardrail, preventing accidents. Attached Figure Description
[0021] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0022] Figure 1 A cross-sectional view of a hollow railing arm with an elliptical cross section;
[0023] Figure 2 A cross-sectional view of a hollow railing arm with an elliptical cross-section;
[0024] Figure 3 A schematic diagram of a three-dimensional structure of a hollow railing arm with an elliptical cross-section;
[0025] Figure 4 This is a schematic diagram of the exploded structure of a hollow railing arm with an elliptical cross-section.
[0026] Figure label:
[0027] 1. Main arm of the barrier arm; 11. Hollow cross rib; 12. Connecting clamp; 13. Lightweight and flexible material; 14. Reflective film. Detailed Implementation
[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0034] like Figure 1 The present invention provides an embodiment of a railing arm with an elliptical cross section, comprising: a main railing arm 1, a cross-shaped stiffening rib 11 provided in the cavity of the main railing arm 1, a clamp 12 for connecting to the railing machine provided at the end of the main rail 1, and a lightweight flexible material 13 covering the outer surface of the main rail 1, with a reflective film 14 covering the surface of the lightweight flexible material covering layer 13.
[0035] Specifically, the main pole of this guardrail boom has an elliptical cross-section, which improves its vertical bending and torsional resistance, allowing it to better withstand vertical impact forces during the boom's raising and lowering. Simultaneously, the hollow cross-section of the main pole reduces weight compared to a solid cross-section, lowering the risk of sagging due to its own weight, and also reducing motor power and energy consumption. Furthermore, cross-shaped stiffening ribs 11 are arranged within the elliptical cavity; this design disperses and absorbs impact forces, reducing swaying of the pole under stress and improving the stability and durability of the guardrail boom.
[0036] According to an embodiment of the present invention, the reflective film 14 is a dyed reflective film.
[0037] Specifically, because the reflective film is a dyed reflective film, it enhances contrast and visibility, making it more conspicuous on the road and improving recognition, allowing drivers to identify it in a timely manner and further enhancing driving safety. It should also be noted that the reflective film 14 is equipped with a luminous coating.
[0038] Specifically, because the reflective film 14 has a luminescent coating, it actively emits light when vehicle headlights do not illuminate the guardrail arm, allowing drivers to spot the guardrail earlier, control their speed in advance, and reduce safety risks. This effect is particularly noticeable at night when the guardrail operator and the vehicle are not in a straight line, such as when the operator is located at a bend, and vehicle headlights do not illuminate the guardrail arm. It also ensures that pedestrians and cyclists without nighttime lighting can promptly spot the guardrail, preventing accidents.
[0039] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.
Claims
1. An elliptical cross-section hollow balustrade machine arm, characterised in that, Include: Railings machine arm main rod (1), the railings machine arm main rod cross section is provided in the form of an oval cross section; The oval cross section is provided in the form of a hollow; A cross stiffening rib (11) is added in the cavity of the railings machine arm main rod cross section; The railings machine arm main rod is connected with the railings machine rotating shaft through a metal clamp (12) which is convenient to replace; The outer surface of the railings machine arm main rod is wrapped with a layer of lightweight flexible material (13); The outer surface of the lightweight flexible material is provided with a reflective film (14).
2. The railing machine arm of claim 1, wherein, The railings machine arm main rod is an oval hollow cross section, and the inner cross section of the lightweight flexible material is an oval.
3. The railing machine arm of claim 1, wherein, The reflective film (14) is a dyed reflective film.
4. A balustrade machine arm according to any one of claims 1 to 3, wherein, The reflective film (14) is provided with a noctilucent coating.