Device for protecting subgrade accessory finished product
By installing protective frames at the corners of concrete drainage ditches, the problem of easy damage to the corners of the ditches during construction was solved, achieving durability and impact resistance, and reducing construction costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE 2ND ENG CO LTD OF CHINA RAILWAY 16TH BUREAU GRP
- Filing Date
- 2025-02-28
- Publication Date
- 2026-04-21
AI Technical Summary
In the construction of railway and highway subgrade ancillary works, the completed concrete edges and corners are easily damaged during cross-construction, especially the edges and corners of drainage ditches.
The protective frame is composed of first angle steel, second angle steel, and third angle steel. It is connected to the concrete ditch by left and right flat steel. The protective frame is reinforced with flat steel and has a buffer rubber layer to ensure that the edges and corners are not damaged.
It improves the durability and impact resistance of concrete drainage ditch edges and corners, prevents damage to edges and corners during construction, and reduces construction costs and time costs.
Smart Images

Figure CN224148467U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of roadbed protection devices, specifically to a device for protecting roadbed ancillary finished products. Background Technology
[0002] In the construction of roadbed ancillary works such as railways and highways, there are problems of cross-influence; the edges and corners of completed concrete are easily damaged during cross-construction, such as when constructing slopes or platforms, which can easily cause damage to the edges and corners of completed ditches. Utility Model Content
[0003] In view of the above-mentioned technical problems in related technologies, this utility model proposes a device for protecting roadbed ancillary finished products, which can overcome the above-mentioned shortcomings of the prior art.
[0004] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:
[0005] A device for protecting finished roadbed components;
[0006] The device for protecting the finished products attached to the roadbed includes a protective frame composed of a first angle steel, a second angle steel, and a third angle steel; a left flat steel and a right flat steel are respectively welded vertically to both sides of the protective frame; the protective frame forms a fitting overlap with the concrete ditch through the left flat steel and the right flat steel, and the protective space of the protective frame is used to fit into the corners of the concrete ditch.
[0007] Furthermore, a plurality of reinforcing flat steels are provided between the left flat steel and the right flat steel, and the left flat steel, the right flat steel and the reinforcing flat steels are all arranged in parallel.
[0008] Furthermore, the first angle steel, the second angle steel, and the third angle steel are all arranged longitudinally along the top edge of the concrete ditch.
[0009] Furthermore, the first angle steel and the second angle steel are arranged opposite to each other, and the third angle steel is arranged in the same direction as the first angle steel.
[0010] Furthermore, the thickness of the reinforcing flat steel is 5-8mm, the lateral spacing is 1 / 3-1 / 2 of the length of the protective frame, and it is fixedly connected by intermittent welding.
[0011] Furthermore, the first angle steel, the second angle steel, and the third angle steel all have a leg width of 50-80mm and a leg thickness of 6-10mm, and the inner side of the first angle steel, the second angle steel, and the third angle steel is provided with a 3-5mm buffer rubber layer.
[0012] The beneficial effects of this utility model are as follows: Through the optimized and improved design of this utility model product, the problem of easy damage to the corners of the ditch during the construction of slopes and platforms is solved. It has sufficient durability and impact resistance and can withstand certain pressure and impact, thereby ensuring that the corners of the auxiliary finished products will not be damaged during the construction process. In addition, this utility model product is simple and convenient to install, easy to operate and maintain, and reduces construction costs and time costs. Attached Figure Description
[0013] 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.
[0014] Figure 1 This is a front view of a device for protecting roadbed accessories according to an embodiment of the present utility model;
[0015] Figure 2 This is a left view of a device for protecting roadbed accessories according to an embodiment of the present utility model;
[0016] Figure 3 This is a schematic diagram illustrating a usage scenario of a device for protecting roadbed ancillary finished products according to an embodiment of this utility model;
[0017] In the diagram: 1. First angle steel; 2. Second angle steel; 3. Third angle steel; 4. Left flat steel; 5. Right flat steel; 6. Reinforcing flat steel; 7. Concrete ditch; 8. Ditch corner. Detailed Implementation
[0018] 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 skilled in the art are within the protection scope of the present utility model.
[0019] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.
[0020] like Figure 1-3 As shown, a device for protecting roadbed accessories according to an embodiment of the present invention includes a protective frame composed of a first angle steel 1, a second angle steel 2, and a third angle steel 3; a left flat steel 4 and a right flat steel 5 are respectively vertically welded to both sides of the protective frame; the protective frame forms a fitting overlap with the concrete ditch 7 through the left flat steel 4 and the right flat steel 5, and the protective space of the protective frame is used to fit the corner 8 of the concrete ditch 7.
[0021] According to an embodiment of the present invention, a device for protecting roadbed ancillary finished products is provided in a certain specific embodiment, wherein a plurality of reinforcing flat steels 6 are provided between the left flat steel 4 and the right flat steel 5, and the left flat steel 4, the right flat steel 5 and the reinforcing flat steels 6 are all arranged in parallel.
[0022] According to an embodiment of the present invention, a device for protecting roadbed accessories is provided. In a specific embodiment, the first angle steel 1, the second angle steel 2, and the third angle steel 3 are all arranged longitudinally along the top edge of the concrete ditch 7.
[0023] According to an embodiment of the present invention, a device for protecting roadbed ancillary finished products is provided. In a specific embodiment, the first angle steel 1 and the second angle steel 2 are arranged opposite to each other, and the third angle steel 3 is arranged in the same direction as the first angle steel 1.
[0024] According to an embodiment of the present invention, a device for protecting roadbed accessories is provided. In a specific embodiment, the thickness of the reinforcing flat steel 6 is 5-8mm, the lateral spacing is 1 / 3-1 / 2 of the length of the protective frame, and the connection is fixed by intermittent welding.
[0025] According to an embodiment of the present invention, a device for protecting roadbed accessories is provided. In a specific embodiment, the first angle steel 1, the second angle steel 2 and the third angle steel 3 have a leg width of 50-80mm and a leg thickness of 6-10mm, and the inner side of the first angle steel 1, the second angle steel 2 and the third angle steel 3 are provided with a 3-5mm buffer rubber layer.
[0026] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.
[0027] In practical use, the device for protecting roadbed accessories according to this utility model has sufficient durability and impact resistance, can withstand certain pressure and impact, ensures that the edges and corners of the accessories will not be damaged during construction, is simple and convenient to install, easy to operate and maintain, and reduces construction costs and time costs.
[0028] This device is mainly composed of angle steel and flat steel. The protective device mainly uses angle steel to protect the edges and corners of concrete structural components from damage, while the flat steel is responsible for fixing and connecting the angle steel.
[0029] The advantages of this utility model are: simple manufacturing process, low material consumption, and low manufacturing cost; simple and convenient installation, easy operation and maintenance; and reduced construction and time costs.
[0030] The specific implementation method of this utility model device is as follows:
[0031] 1. Remove loose debris and foreign matter from the surface of structural components.
[0032] 2. Place the protective device on the structural component, ensuring that the inside of the angle steel matches the corner of the structural component.
[0033] This device can protect the edges and corners of completed concrete structures from damage, avoiding rework and rectification, making the appearance more aesthetically pleasing, and saving construction time.
[0034] In summary, by utilizing the above-mentioned technical solution of this utility model and through the optimized and improved design of the product, the problem of easy damage to the corners of ditches during construction of slopes and platforms is solved. It has sufficient durability and impact resistance, and can withstand certain pressure and impact forces, thereby achieving the beneficial effect of ensuring that the corners of the auxiliary finished products are not damaged during construction. Moreover, the product of this utility model is simple and convenient to install, easy to operate and maintain, and reduces construction costs and time costs.
[0035] 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 device for protecting finished roadbed accessories, characterized in that, It includes a protective frame composed of a first angle steel (1), a second angle steel (2), and a third angle steel (3); a left flat steel (4) and a right flat steel (5) are vertically welded to both sides of the protective frame; the protective frame is adapted to overlap with the concrete ditch (7) through the left flat steel (4) and the right flat steel (5), and the protective space of the protective frame is used to fit the corner (8) of the concrete ditch (7).
2. A device for subgrade accessory finished protection according to claim 1, characterized in that, Several reinforcing flat steels (6) are provided between the left flat steel (4) and the right flat steel (5), and the left flat steel (4), the right flat steel (5) and the reinforcing flat steel (6) are all arranged in parallel.
3. A device for protecting a finished product associated with a subgrade according to claim 1, wherein The first angle steel (1), the second angle steel (2), and the third angle steel (3) are all arranged longitudinally along the top edge of the concrete ditch (7).
4. A device for protecting a finished product associated with a subgrade according to claim 1, wherein The first angle steel (1) and the second angle steel (2) are arranged opposite to each other, and the third angle steel (3) is arranged in the same direction as the first angle steel (1).
5. A device for protecting a finished product associated with a subgrade according to claim 2, wherein, The thickness of the reinforcing flat steel (6) is 5-8mm, the transverse spacing is 1 / 3-1 / 2 of the length of the protective frame, and it is fixedly connected by intermittent welding.
6. A device for protecting a finished product associated with a subgrade according to claim 1, wherein The first angle steel (1), the second angle steel (2) and the third angle steel (3) have a leg width of 50-80mm and a leg thickness of 6-10mm, and the inner side of the first angle steel (1), the second angle steel (2) and the third angle steel (3) are provided with a 3-5mm buffer rubber layer.