Light shield and railway inspection equipment

Abstract

The utility model relates to a light shield and railway inspection equipment, and relates to the field of railway detection. The light shield comprises a light shielding frame and a connecting bending piece. An accommodating area is defined by the shading frame, and an optical filter is mounted on the lower edge of the shading frame; the connecting bending piece comprises a first connecting section, a second connecting section and a third connecting section, the two ends of the second connecting section are perpendicularly connected with the first connecting section and the third connecting section respectively, and the first connecting section and the third connecting section are located on the same side of the second connecting section; the first connecting section and the third connecting section are connected with the upper edges of the two opposite side walls of the shading frame respectively. The light shield provided by the utility model solves the technical problem that a camera equipped on a railway inspection robot in the prior art is poor in image quality or easy to damage.

Description

Technical Field

[0001] The present application relates to the field of railway inspection, and in particular to a light shield and railway inspection equipment. Background Art

[0002] With the rapid development of electrified railways, traditional measurement methods are no longer sufficient to meet the demands for fast, accurate, and safe railway inspections. Consequently, railway inspection robots have emerged as a mainstream tool for many inspection tasks. These robots utilize a variety of high-precision sensors and advanced image recognition technology, enabling them to monitor the status of railway lines in real time and provide accurate analytical data.

[0003] Existing railway inspection robots are typically equipped with high-precision stereo vision cameras for daily track inspections; however, these cameras are easily affected by environmental factors such as light and dust during operation, which can lead to degraded image quality or damage to the cameras. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a light shield and railway inspection equipment to alleviate the technical problem in the prior art that the camera equipped with the railway inspection robot has poor image quality or is easily damaged.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0006] In a first aspect, the light shield provided by the present utility model includes a light shielding frame and a connecting bending member;

[0007] The light shielding frame encloses a receiving area, and a filter is installed on the lower edge of the light shielding frame;

[0008] The connecting bending member includes a first connecting segment, a second connecting segment and a third connecting segment, wherein two ends of the second connecting segment are respectively perpendicularly connected to the first connecting segment and the third connecting segment, and the first connecting segment and the third connecting segment are located on the same side of the second connecting segment;

[0009] The first connecting section and the third connecting section are respectively connected to upper edges of two opposite side walls of the light-shielding frame.

[0010] Furthermore, the shading frame includes two first shading plates and two second shading plates, the two first shading plates are arranged opposite to each other, and the two second shading plates are arranged opposite to each other;

[0011] Two ends of the first light shielding plate are respectively vertically connected to the two second light shielding plates, and the two second light shielding plates are located on the same side of the first light shielding plate;

[0012] The first connecting section is connected to one of the first shading plates, and the third connecting section is connected to another of the first shading plates.

[0013] Furthermore, the lower edge of the first light shielding plate is provided with an avoidance groove;

[0014] The avoidance groove includes a first groove and a second groove. The first groove is recessed upward from the lower edge of the first light shielding plate, and the second groove is recessed upward from the bottom wall of the first groove.

[0015] Furthermore, the first light shielding plate includes a light shielding body and two first mounting plates, and the lower edge of the light shielding body is provided with the second groove;

[0016] The two first additional mounting plates are both connected to the lower edge of the light shielding body and are respectively located on both sides of the second groove, and the first groove is formed between the two first additional mounting plates;

[0017] A first mounting groove is provided on the lower edge of the first mounting plate.

[0018] Furthermore, the first light shielding plate further includes two second additional plates, the two second additional plates are respectively located on both sides of the second groove and between the two first additional plates;

[0019] The second mounting plate is connected to the inner wall of the light shielding body, and the lower edge of the second mounting plate is flush with the lower edge of the light shielding body;

[0020] A second mounting groove is provided on the lower edge of the second mounting plate.

[0021] Furthermore, the first light shielding plate further includes two third mounting plates arranged opposite to each other, the two third mounting plates are respectively located on both sides of the second groove, and the length direction of the third mounting plates is parallel to the axis of the second groove;

[0022] The third additional mounting plate is connected to the outer wall of the light-shielding body, and third mounting grooves are provided on opposite surfaces of the two third additional mounting plates.

[0023] Furthermore, the first shading plate further includes a connecting portion, the connecting portion is vertically connected to the shading body, and the connecting portion is connected to the second shading plate via a fastener.

[0024] Furthermore, a fourth mounting plate is installed on the lower side of the inner wall of the second shading plate, and a fourth mounting groove is provided on the lower edge of the fourth mounting plate.

[0025] Furthermore, the first connecting segment, the second connecting segment and the third connecting segment are integrally formed.

[0026] In a second aspect, the railway inspection equipment provided by the present invention includes a bracket, a camera, a roller and a light shield as described in any one of the above items;

[0027] The camera and the roller are respectively installed on both sides of the bracket, and the bracket and the camera are located in the connecting bending piece in the light shield, and the roller is located in the light shield frame in the light shield.

[0028] Based on the above technical solutions, the technical effects that can be achieved by this utility model are analyzed as follows:

[0029] The light shield provided by the utility model includes a light shielding frame and a connecting bending member; the light shielding frame encloses a storage area, and a filter is installed on the lower edge of the light shielding frame; the connecting bending member includes a first connecting section, a second connecting section, and a third connecting section, and the two ends of the second connecting section are respectively vertically connected to the first connecting section and the third connecting section, and the first connecting section and the third connecting section are located on the same side of the second connecting section; the first connecting section and the third connecting section are respectively connected to the upper edges of the two opposite side walls of the light shielding frame. The light shield is applied to railway inspection equipment, the camera is located in the connecting bending member, and the camera lens faces the light shielding frame; the connecting bending member can protect the camera, and the light shielding frame can reduce the direct penetration of external light into the camera; the filter can filter light. The connecting bending member includes a first connecting section, a second connecting section, and a third connecting section, which realize the connection between the connecting bending member and the storage area of ​​the light shielding frame to avoid affecting the camera's shooting, and realize that the connecting bending member can accommodate the camera.

[0030] The lens hood can effectively reduce the impact of ambient temperature on camera performance, reflect light from the external environment, reduce the direct penetration of external light into the camera, and reflect stray light entering the lens, thereby reducing glare and ghosting. In addition to optical protection, the lens hood also has mechanical strength, can withstand impact and collision, protect the camera, and extend the service life of the camera.

[0031] This innovative light shield effectively protects the robot's internal optical system from interference from external light, thereby improving its detection accuracy and reliability. For example, in harsh environments such as strong light, rain, and snow, the light shield prevents stray light from entering the lens, ensuring image clarity and stability. The light shield is innovatively optimized for different application scenarios. For example, the multi-section light shield prevents strong light from directly entering the lens, reducing the effects of scattering and thus improving image quality. This design not only improves the light shielding effect but also enhances the adaptability and flexibility of railway inspection equipment. By integrating advanced light shielding technology, railway inspection equipment can operate stably under various lighting conditions, improving overall performance and work efficiency. The innovative structure of the light shield significantly enhances the adaptability of railway inspection equipment in complex environments and image acquisition quality, making a significant contribution to improving the safety and efficiency of railway maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A front view of a light shield provided in an embodiment of the present application;

[0034] Figure 2 A side view of a light shield provided in an embodiment of the present application;

[0035] Figure 3 A schematic diagram of the three-dimensional structure of the light shield provided in an embodiment of the present application;

[0036] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0037] Figure 5 for Figure 3 A partial enlarged view of point B in the middle;

[0038] Figure 6 for Figure 3 A partial enlarged view of point C in the middle.

[0039] icon:

[0040] 100 - light shielding frame; 120 - first light shielding plate; 121 - avoidance groove; 1211 - first groove; 1212 - second groove; 122 - light shielding body; 123 - first mounting plate; 1231 - first mounting slot; 124 - second mounting plate; 1241 - second mounting slot; 125 - third mounting plate; 1251 - third mounting slot; 130 - second light shielding plate; 131 - fourth mounting plate; 1311 - fourth mounting slot;

[0041] 200 - connecting bending part; 210 - first connecting section; 220 - second connecting section; 230 - third connecting section. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0043] In the description of this application, it should be noted that the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0044] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0045] In recent years, China's high-speed rail maintenance industry has achieved significant breakthroughs. The technological level and industrialization of high-speed rail maintenance and application fields have accelerated, entering an unprecedented new stage of development. my country's high-speed rail industry has experienced rapid growth in recent years, with the total operating mileage of high-speed rail increasing rapidly. By 2023, my country's production of high-speed rail maintenance systems reached 41,400 sets. With the continued expansion of high-speed rail construction, demand for high-speed rail maintenance systems has grown rapidly. By the end of 2023, my country's operating railway mileage reached 159,000 kilometers, including 45,000 kilometers of high-speed rail. High-speed rail construction has driven the rapid development of the related maintenance industry. With the rapid development of electrified railway lines, traditional measurement methods are no longer able to meet the requirements of fast, accurate, and safe railway inspections. Railway inspection robots have emerged in response and have become a mainstream tool for many maintenance tasks. Railway inspection robots rely on a variety of high-precision sensors and advanced image recognition technology. Through these technologies, they can monitor the status of railway lines and equipment in real time and provide accurate analytical data. Cameras are crucial to the efficiency and quality of railway inspection robots. Multifunctional integration, the ability to perform intelligent analysis and identification, and precise positioning and data collection are all important functions of cameras. The camera's accurate and efficient capture and transmission of data can bring great convenience to the inspection of high-speed trains, which shows the importance of cameras.

[0046] Existing railway inspection robots are typically equipped with high-precision stereo vision cameras for routine track inspections. However, these cameras are susceptible to environmental influences such as light and dust during operation, which can lead to contamination, image degradation, or camera damage. Interference in the optical path can significantly impact camera efficiency, and reflected and scattered light can affect the accuracy and quality of the images captured by the camera. As a critical component of inspection, the safety of the camera assembly must also be well-protected. Exposed cameras are susceptible to bumps and environmental influences such as salt and water vapor, which can degrade camera performance, incomplete data collection, and substandard recognition results. In these cases, data re-collection is necessary, resulting in low collection efficiency, poor results, increased time and human resources, and other issues.

[0047] The embodiments of the present utility model aim to solve the problem of image quality degradation caused by light interference during railway inspection, especially in strong light environments during the day, and can significantly improve the clarity and accuracy of inspection equipment shooting, thereby improving the efficiency and reliability of fault detection.

[0048] Example 1

[0049] See also Figures 1 to 6 The light shield provided by the embodiment of the present invention includes a light shielding frame 100 and a connecting bending piece 200; the light shielding frame 100 encloses a accommodating area, and a filter is installed on the lower edge of the light shielding frame 100; the connecting bending piece 200 includes a first connecting section 210, a second connecting section 220 and a third connecting section 230, and the two ends of the second connecting section 220 are respectively vertically connected to the first connecting section 210 and the third connecting section 230, and the first connecting section 210 and the third connecting section 230 are located on the same side of the second connecting section 220; the first connecting section 210 and the third connecting section 230 are respectively connected to the upper edges of the two opposite side walls of the light shielding frame 100.

[0050] Specifically, the entire light shield is made of aluminum alloy, and the filter is configured as a PMMA filter.

[0051] The light shield is used in railway inspection equipment. The camera is located in the connecting bent piece 200, and the camera lens faces the light shielding frame 100. The connecting bent piece 200 can protect the camera, and the light shielding frame 100 can reduce the direct penetration of external light into the camera. The filter can filter light. Figure 3 The connecting bending member 200 includes a first connecting segment 210, a second connecting segment 220 and a third connecting segment 230, which connect the connecting bending member 200 to the accommodating area of ​​the light-shielding frame 100 to avoid affecting the camera shooting, and realize that the connecting bending member 200 can accommodate the camera.

[0052] The lens hood effectively reduces the impact of ambient temperature on camera performance. It reflects ambient light, reducing direct penetration of external light into the camera. It also reflects stray light that enters the lens, thereby reducing glare and ghosting. In addition to optical protection, the lens hood also provides mechanical strength, resisting impact and collisions, protecting the camera and extending its lifespan. This innovative lens hood effectively shields the robot's internal optical system from interference from external light, thereby improving detection accuracy and reliability. For example, in harsh environments such as strong sunlight, rain, and snow, the lens hood prevents stray light from entering the lens, ensuring image clarity and stability. It is innovatively optimized for different application scenarios. For example, the multi-section lens hood prevents strong light from directly entering the lens, reducing the effects of scattering and improving image quality. This design not only improves light shielding effectiveness but also enhances the adaptability and flexibility of railway inspection equipment. By integrating advanced light shielding technology, railway inspection equipment can operate stably in various lighting conditions, improving overall performance and efficiency. The innovative structure of the light shield significantly enhances the adaptability and image acquisition quality of railway inspection equipment in complex environments, making an important contribution to improving the safety and efficiency of railway maintenance.

[0053] The structure and shape of the lens hood are described in detail below:

[0054] In the optional solution of the embodiment of the present utility model, see Figure 3 The shading frame 100 includes two first shading plates 120 and two second shading plates 130. The two first shading plates 120 are arranged opposite to each other, and the two second shading plates 130 are arranged opposite to each other; the two ends of the first shading plate 120 are respectively vertically connected to the two second shading plates 130, and the two second shading plates 130 are located on the same side of the first shading plate 120; the first connecting section 210 is connected to one first shading plate 120, and the third connecting section 230 is connected to the other first shading plate 120.

[0055] Specifically, the two first sunshades 120 are of equal shape and size, and the two second sunshades 130 are of equal shape and size. In this embodiment, the first sunshade 120 is detachably connected to the two adjacent second sunshades 130. The first connecting section 210 is detachably connected to one first sunshade 120, for example, by screwing or plugging. The third connecting section 230 is detachably connected to the other first sunshade 120, for example, by screwing or plugging. Furthermore, the cross-sectional area of ​​the accommodating area is square; the area of ​​the accommodating area can be configured to gradually increase from top to bottom or remain constant. Filters are installed at the bottoms of both the first sunshade 120 and the second sunshade 130. Alternatively, a filter is installed at the bottom of the first sunshade 120. Alternatively, a filter is installed at the bottom of the second sunshade 130.

[0056] The first light shielding plate 120 and the second light shielding plate 130 are connected to form the light shielding frame 100, which can reflect the light from the external environment and reduce the direct penetration of external light into the camera.

[0057] In the optional solution of the embodiment of the present utility model, see Figure 1 and Figure 3 The lower edge of the first light shielding plate 120 is provided with an avoidance groove 121; the avoidance groove 121 includes a first groove 1211 and a second groove 1212, the first groove 1211 is recessed upward from the lower edge of the first light shielding plate 120, and the second groove 1212 is recessed upward from the bottom wall of the first groove 1211.

[0058] Specifically, the first groove 1211 and the second groove 1212 are connected to avoid the I-shaped track.

[0059] The avoidance groove 121 realizes that the light shield has a semi-full coverage structure. This design structure frees up space for the roller to move freely along the track track, and can ensure that the machine maintains a balanced posture when subjected to physical impact from all terrains, ensuring the normal progress of inspection operations.

[0060] In the optional solution of the embodiment of the present utility model, see Figure 1 and Figure 3 The first light shielding plate 120 includes a light shielding body 122 and two first mounting plates 123. The lower edge of the light shielding body 122 is provided with a second groove 1212. The two first mounting plates 123 are connected to the lower edge of the light shielding body 122 and are respectively located on both sides of the second groove 1212. A first groove 1211 is formed between the two first mounting plates 123. Figure 4 A first mounting groove 1231 is defined on the lower edge of the first mounting plate 123 .

[0061] Specifically, the height of the light shielding body 122 is less than the height of the second light shielding plate 130; the sum of the heights of the light shielding body 122 and the first mounting plate 123 is equal to the height of the second light shielding plate 130. The first mounting plate 123 is configured as an elongated strip, with its length running along the length of the light shielding body 122. The first mounting slot 1231 runs along the length of the first mounting plate 123 and can be used to install filters or other modules, such as plate brushes, achieving multiple autonomy, enhancing system flexibility and adaptability, and reducing costs.

[0062] A first groove 1211 is formed between the two first additional plates 123 for avoiding the track; a first mounting groove 1231 is provided on the lower edge of the two first additional plates 123 to enable the installation of filters or other modules, thereby improving the practicality of the light shield and enhancing the strength of the lower edge of the first light shielding plate 120.

[0063] In an optional solution of the embodiment of the present invention, the first light shielding plate 120 further includes two second mounting plates 124, which are respectively located on both sides of the second groove 1212 and between the two first mounting plates 123; the second mounting plates 124 are connected to the inner wall of the light shielding body 122, and the lower edge of the second mounting plates 124 is flush with the lower edge of the light shielding body 122; see Figure 5 A second mounting groove 1241 is provided on the lower edge of the second mounting plate 124 .

[0064] Specifically, in this embodiment, the first additional plate 123 and the second additional plate 124 have the same length; the first additional plate 123 and the second additional plate 124 have no overlapping parts, thereby preventing the light shield from being too heavy.

[0065] The lower edges of the two second mounting plates 124 are provided with second mounting grooves 1241 to enable the installation of filters or other modules, thereby improving the practicality of the light shield and enhancing the strength of the lower edge of the first light shielding plate 120 .

[0066] In an optional solution of the embodiment of the present invention, the first light shielding plate 120 further includes two third mounting plates 125 arranged opposite to each other. The two third mounting plates 125 are respectively located on both sides of the second groove 1212, and the length direction of the third mounting plates 125 is parallel to the axis of the second groove 1212; see Figure 6 The third additional plate 125 is connected to the outer wall of the light shielding body 122 , and a third mounting groove 1251 is formed on the opposite surfaces of the two third additional plates 125 .

[0067] Specifically, the third additional plate 125 is elongated, with its length extending along the height of the first light shielding plate 120. Two third additional plates 125 are positioned opposite each other, and can be used to mount 2D cameras, etc., for inspecting patrol work, improving real-time monitoring and response capabilities, and promoting the safety and stability of railway operations.

[0068] The third mounting plate 125 can be equipped with other components to improve the practicality of the sunshade.

[0069] In an optional solution of the embodiment of the present invention, the first light shielding plate 120 further includes a connecting portion, which is vertically connected to the light shielding body 122 and is connected to the second light shielding plate 130 via a fastener.

[0070] Specifically, the connection parts are arranged around both sides and the upper edge of the light shielding body 122 . The connection parts on both sides are used to connect with the second light shielding plate 130 , and the connection part on the upper edge is used to connect with the connecting bending piece 200 .

[0071] The connecting portion increases the contact area between the first light shielding plate 120 and the second light shielding plate 130 , thereby improving the connection strength between the two.

[0072] In an optional solution of the embodiment of the present utility model, a fourth additional plate 131 is installed on the lower side of the inner wall of the second light shielding plate 130; see Figure 4 A fourth mounting groove 1311 is defined on the lower edge of the fourth mounting plate 131 .

[0073] Specifically, the length of the fourth additional plate 131 is equal to that of the second light shielding plate 130 , and the lower edge of the fourth additional plate 131 is flush with the lower edge of the second light shielding plate 130 .

[0074] The fourth additional plate 131 is used to install other components such as filters, thereby improving the flexibility of the light shielding plate.

[0075] In an optional solution of the embodiment of the present invention, the first connecting section 210, the second connecting section 220 and the third connecting section 230 are integrally formed.

[0076] Specifically, a plate is bent to form the connecting and bending member 200 having a first connecting segment 210 , a second connecting segment 220 and a third connecting segment 230 .

[0077] The first connecting section 210 , the second connecting section 220 and the third connecting section 230 are integrally formed, which improves the connection strength and extends the service life of the connecting bending member 200 .

[0078] Example 2

[0079] The railway inspection equipment provided by the embodiment of the present utility model includes the light shield described in the first embodiment, and therefore also has all the beneficial effects of the first embodiment, which will not be described in detail here.

[0080] In an optional solution of an embodiment of the present utility model, the railway inspection equipment includes a bracket, a camera and a roller; the camera and the roller are respectively installed on both sides of the bracket, and the bracket and the camera are located in the connecting bending part 200 in the light shield, and the roller is located in the light shielding frame 100 in the light shield.

[0081] Specifically, the bracket is equipped with a handle, with two cameras mounted on its upper surface and two rollers on its lower surface, with the handle positioned between the two cameras. Two lens hoods are provided, one for each camera. Furthermore, the lens hoods and cameras are connected via screws, enhancing the connection strength and ensuring they remain secure even in the face of bumps and vibrations.

[0082] The application capabilities of railway inspection equipment in intelligence, automation, data collection and analysis, high-precision positioning, image processing and computer vision, edge-cloud collaborative intelligent detection, multi-sensor fusion, and data security have been significantly improved; inspection efficiency, accuracy, and safety have been improved, while reducing labor costs and labor intensity.

[0083] It should be noted that, unless there is any conflict, the features in the embodiments of this application can be combined with each other.

[0084] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A sunshade, characterized in that: include: A light-shielding frame (100) and a connecting bending member (200); The light shielding frame (100) encloses a receiving area, and a filter is installed on the lower edge of the light shielding frame (100); The connecting bending member (200) comprises a first connecting segment (210), a second connecting segment (220) and a third connecting segment (230), wherein two ends of the second connecting segment (220) are respectively vertically connected to the first connecting segment (210) and the third connecting segment (230), and the first connecting segment (210) and the third connecting segment (230) are located on the same side of the second connecting segment (220); The first connecting section (210) and the third connecting section (230) are respectively connected to upper edges of two opposite side walls of the light-shielding frame (100).

2. The light shield according to claim 1, wherein: The light shielding frame (100) comprises two first light shielding plates (120) and two second light shielding plates (130), wherein the two first light shielding plates (120) are arranged opposite to each other, and the two second light shielding plates (130) are arranged opposite to each other; Two ends of the first light shielding plate (120) are respectively vertically connected to the two second light shielding plates (130), and the two second light shielding plates (130) are located on the same side of the first light shielding plate (120); The first connecting section (210) is connected to one of the first shading plates (120), and the third connecting section (230) is connected to another of the first shading plates (120).

3. The light shield according to claim 2, wherein: The lower edge of the first light shielding plate (120) is provided with an avoidance groove (121); The avoidance groove (121) comprises a first groove (1211) and a second groove (1212), wherein the first groove (1211) is recessed upward from the lower edge of the first light shielding plate (120), and the second groove (1212) is recessed upward from the bottom wall of the first groove (1211).

4. The light shield according to claim 3, wherein: The first light shielding plate (120) comprises a light shielding body (122) and two first mounting plates (123); the lower edge of the light shielding body (122) is provided with the second groove (1212); The two first additional plates (123) are both connected to the lower edge of the light-shielding body (122) and are respectively located on both sides of the second groove (1212), and the first groove (1211) is formed between the two first additional plates (123); A first mounting groove (1231) is provided on the lower edge of the first mounting plate (123).

5. The light shield according to claim 4, wherein: The first light shielding plate (120) further includes two second additional plates (124), the two second additional plates (124) being respectively located on both sides of the second groove (1212) and between the two first additional plates (123); The second mounting plate (124) is connected to the inner wall of the light-shielding body (122), and the lower edge of the second mounting plate (124) is flush with the lower edge of the light-shielding body (122); A second mounting groove (1241) is provided on the lower edge of the second mounting plate (124).

6. The light shield according to claim 5, wherein: The first light shielding plate (120) further comprises two third mounting plates (125) arranged opposite to each other, the two third mounting plates (125) being respectively located on both sides of the second groove (1212), and the length direction of the third mounting plates (125) being parallel to the axis of the second groove (1212); The third additional installation plate (125) is connected to the outer wall of the light-shielding body (122), and third installation grooves (1251) are provided on the opposite surfaces of the two third additional installation plates (125).

7. The sunshade according to any one of claims 4 to 6, characterized in that: The first light shielding plate (120) further comprises a connecting portion, wherein the connecting portion is vertically connected to the light shielding body (122), and the connecting portion is connected to the second light shielding plate (130) via a fastener.

8. The light shield according to claim 2, wherein: A fourth mounting plate (131) is installed on the lower side of the inner wall of the second light shielding plate (130), and a fourth mounting groove (1311) is provided on the lower edge of the fourth mounting plate (131).

9. The light shield according to claim 1, wherein: The first connecting section (210), the second connecting section (220) and the third connecting section (230) are integrally formed.

10. A railway inspection device, characterized in that: comprising a bracket, a camera, a roller and a light shield according to any one of claims 1 to 9; The camera and the roller are respectively installed on both sides of the bracket, and the bracket and the camera are located in the connecting bending piece (200) in the light shield, and the roller is located in the light shield frame (100) in the light shield.

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