Vehicle-mounted detection device for non-blind area measurement of abnormal heating of catenary parts

Abstract

The invention discloses a vehicle-mounted detection device for non-blind area measurement of abnormal heating of contact network parts, and relates to the technical field of contact network detection. Comprising an operation vehicle and a temperature measuring camera, the temperature measuring camera is installed on the rear side of a working pantograph in the operation direction of the operation vehicle, a fixed baffle is installed on the upper surface of the temperature measuring camera, a movable baffle is slidably installed on the surface of the fixed baffle in a limiting mode, expansion plates are symmetrically slidably installed in the two sides of the movable baffle, and a rotating shaft is rotatably installed in the center of the interior of the movable baffle; a pressure type rainfall sensor, a fixed baffle, a movable baffle, an expansion assembly and an expansion plate are arranged, the outer side of the rotating shaft is provided with an expansion assembly, the bottom end of the fixed baffle is fixedly provided with a rainwater collecting groove, a sliding plate is slidably installed in a cavity in the rainwater collecting groove, and the rainwater collecting groove is internally provided with a cleaning assembly. The moving distance of the movable baffle is adjusted in real time according to the rainfall, the lens of the temperature measurement camera is shielded, and raindrops are prevented from affecting temperature measurement work.

Description

Technical Field

[0001] The present invention relates to the technical field of catenary detection, and particularly to an on-vehicle detection device for non-blind-zone measurement of abnormal heating of catenary components. Background Art

[0002] The catenary heating measurement device is a key device for monitoring the operation status of catenary equipment in the electrified railway power supply system. It is mainly used to detect the temperature changes of key components such as catenary conductors, clamps, and insulators in real time, prevent heating failures caused by poor contact, overload, etc., and ensure the safety of railway power supply and the stability of train operation. This device usually consists of a front-end sensing unit, a data transmission module, and a background monitoring system. The front-end sensing unit uses technologies such as infrared temperature measurement, optical fiber sensing, or wireless temperature sensors to collect the temperature data of catenary components and synchronize the real-time temperature data to the background monitoring system. The background system performs real-time processing on the temperature data based on big data analysis and AI algorithms, sets warning thresholds, and automatically triggers functions such as audible and visual alarms and SMS notifications when abnormal temperature rises are detected to assist maintenance personnel in quickly locating the fault point.

[0003] When the interval time between vehicles running on the line is relatively long, the temperature of the heating point drops back to the original state. Most of the existing device detection principles can detect the heating point when the current flow direction is opposite to the vehicle running direction. However, when the current flow direction is the same as the vehicle running direction, it is easy to form a detection blind zone and the detection purpose cannot be achieved. Moreover, the infrared temperature measurement lens used in the detection, as the core component of temperature measurement, focuses the infrared radiation emitted by the target object onto the detector to realize the real-time acquisition and analysis of the temperature field. When it rains, raindrops fall on the lens surface. On the one hand, there is a temperature difference between the water droplets themselves and the ambient temperature. On the other hand, the curved surface shape of the raindrops will cause scattering and refraction of infrared radiation, resulting in distortion of the focusing optical path, which may affect the temperature measurement work and cause deviation in the temperature measurement results.

[0004] In view of the above problems, there is an urgent need for innovative design on the original basis. Summary of the Invention

[0005] The purpose of the present invention is to provide an on-vehicle detection device for non-blind-zone measurement of abnormal heating of catenary components to solve the problem that raindrops falling on the lens surface during rainy weather may affect the temperature measurement work as mentioned in the above background art. The technical solution of the present invention provides a solution significantly different from the prior art for the technical problem that the prior art solutions are too single.

[0006] To achieve the above object, the present invention provides the following technical solutions: an operating locomotive and a temperature measuring camera. The temperature measuring camera is installed behind the pantograph on the working side in the running direction of the operating locomotive. A fixed baffle is installed on the upper surface of the temperature measuring camera. A first electric push rod is installed at the top of the fixed baffle. A moving baffle is installed on the surface of the fixed baffle in a limited sliding manner. A pushing block is fixed inside the top of the moving baffle. A first blocking plate is fixed at the top of the moving baffle. Expansion plates are symmetrically and slidably installed inside both sides of the moving baffle. A second blocking plate is installed on the side wall of the expansion plate. A rotating shaft is rotatably installed at the center position inside the moving baffle. An expansion component is arranged outside the rotating shaft. A rain collecting groove is fixed at the bottom of the fixed baffle. A sliding plate is slidably installed in the inner cavity of the rain collecting groove. A cleaning component is arranged inside the rain collecting groove.

[0007] The expansion component includes a gear fixed at the bottom end of the rotating shaft and a chain fixedly installed on the outer wall of the rotating shaft. The end of the chain is rotatably connected to the expansion plate. It also includes a movable groove opened on the surface of the fixed baffle, and a rack is installed on the side wall of the movable groove.

[0008] Preferably, the extending end of the first electric push rod is fixedly connected to the side wall of the pushing block, and a pressure type rain sensor is installed on the surface of the moving baffle.

[0009] Preferably, the gear meshes with the rack. The rotating shaft is located at the center position of the chain. Connecting blocks are arranged at the side wall positions of the moving baffle for the two expansion plates. The connecting block is rotatably connected to the end of the chain.

[0010] Preferably, the second blocking plate is designed in an L shape. The second blocking plate is composed of an arc-shaped plate and a long plate perpendicular to each other. The arc-shaped plate of the second blocking plate is slidably limited in the inner cavity of the moving baffle. The arc-shaped plate of the second blocking plate extends along the length direction of the first blocking plate. The surface of the long plate of the second blocking plate is designed to be inclined.

[0011] Preferably, the cleaning component includes a second electric push rod installed inside the rain collecting groove, a limiting groove opened at the top of the inner cavity of the rain collecting groove, a second limiting block slidably installed on the side wall of the limiting groove, a sliding rod installed on the side wall of the limiting groove, and a scraping plate slidably installed on the side wall of the sliding plate. A first limiting block is fixed at the top of the scraping plate. The first limiting block is connected to the second limiting block through a first spring, and the first limiting block is connected to the side wall of the limiting groove through a second spring.

[0012] Preferably, the extending end of the second electric push rod is fixedly connected to the center position of the side wall of the sliding plate, and the side wall of the limiting groove close to the sliding plate is designed to be inclined.

[0013] Preferably, a second limiting block is slidably limited on the inner wall of the side of the limiting groove away from the sliding plate. Both ends of the sliding rod are installed on the two side walls of the limiting groove, and the sliding rod is parallel to the inclined side wall of the limiting groove.

[0014] Preferably, the bottom end of the scraping plate closely adheres to the fixed baffle, and the outer wall of the scraping plate closely adheres to the side wall of the sliding plate.

[0015] Preferably, the first limiting block is located inside the limiting groove, and the first limiting block is slidably installed on the outer wall of the sliding rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, through the pressure rain sensor, fixed baffle, movable baffle, expansion component and expansion board, the rainfall intensity is monitored in real time. According to the amount of rainfall, the moving distance of the movable baffle is adjusted in real time to block the lens of the temperature measurement camera, quickly isolate the contact between raindrops and the lens surface, prevent raindrops from affecting the temperature measurement work. While the movable baffle is moving, the expansion board extends outward synchronously under the cooperation of the expansion component, increasing the shielding area, effectively covering the camera lens, improving the protection range. The second blocking board is arranged at the edge of the expansion board, and together with the first blocking board arranged at the front end of the movable baffle, a diversion structure is formed to quickly drain rainwater, realizing the lens protection for different rainfall intensities, avoiding the temperature measurement error caused by raindrop adhesion, and preventing rainwater from seeping into the device.

[0017] 2. In the present invention, through the rain collecting groove, cleaning component and sliding plate, the operation frequency of the second electric push rod is adjusted in real time according to the amount of rainfall. The second electric push rod pushes the sliding plate to clean the rainwater accumulated inside the rain collecting groove and empty the rain collecting groove, avoiding the influence of rainwater accumulation on the device. While the sliding plate is moving, under the cooperation of the cleaning component, the scraping plate always closely adheres to the surface of the sliding plate and moves back and forth along the limiting groove to scrape the rainwater accumulated on the surface of the sliding plate, reducing the corrosion risk of the device caused by rainwater residue and maintaining the stable operation of the device in a continuous rainfall environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structure diagram of the present invention; Figure 2 is a bottom view structure diagram of the temperature measurement camera of the present invention; Figure 3 is a three-dimensional structure diagram of the temperature measurement camera of the present invention; Figure 4 is a sectional view of the three-dimensional structure of the temperature measurement camera of the present invention; Figure 5 is of the present invention Figure 4 the enlarged structure diagram at A in; Figure 6 is a structure diagram of the expansion component of the present invention; Figure 7 is of the present invention Figure 6 the enlarged structure diagram at B in; Figure 8 is a partial structure diagram of the rotating shaft and gear of the present invention; Figure 9This is a schematic diagram of the split structure of the rain collection trough, sliding plate, limiting groove, scraping plate, first limiting block, second limiting block, first spring, second spring and sliding rod of the present invention.

[0019] In the figure: 1, operating vehicle; 2, temperature measuring camera; 3, fixed baffle; 301, pressure type rain sensor; 302, first electric push rod; 303, movable groove; 4, movable baffle; 401, first blocking plate; 402, pushing block; 403, extension plate; 404, second blocking plate; 5, rotating shaft; 501, chain; 502, gear; 503, rack; 6, rain collection trough; 601, second electric push rod; 602, sliding plate; 603, limiting groove; 7, scraping plate; 701, first limiting block; 702, second limiting block; 703, first spring; 704, second spring; 705, sliding rod. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1 - 9 , the present invention provides a technical solution: a vehicle-mounted detection device for non-blind area measurement of abnormal heating of catenary parts, including an operating vehicle 1 and a temperature measuring camera 2. A temperature measuring camera 2 is installed behind the pantograph on the working side of the operating vehicle 1. A fixed baffle 3 is installed on the upper surface of the temperature measuring camera 2. A first electric push rod 302 is installed at the top of the fixed baffle 3. A movable baffle 4 is installed on the surface of the fixed baffle 3 in a limited sliding manner. A pushing block 402 is fixed inside the top of the movable baffle 4. A first blocking plate 401 is fixed at the top of the movable baffle 4. Extension plates 403 are symmetrically installed in a sliding manner inside both sides of the movable baffle 4. A second blocking plate 404 is installed on the side wall of the extension plate 403. A rotating shaft 5 is installed at the center position inside the movable baffle 4. An expansion component is arranged outside the rotating shaft 5. A rain collection trough 6 is fixed at the bottom end of the fixed baffle 3. A sliding plate 602 is installed in a sliding manner in the inner cavity of the rain collection trough 6. A cleaning component is arranged inside the rain collection trough 6. The temperature measuring camera 2 is located behind the pantograph, ensuring that the monitoring vision of the temperature measuring camera 2 for the catenary is not blocked. The first electric push rod 302 and the movable baffle 4 are intelligently controlled to accurately control the moving distance of the movable baffle 4, adapt to different rainfall intensities, and achieve flexible protection. The extension plate 403 expands the protection area to ensure that the lens is fully covered in all directions.

[0022] The expansion component includes a gear 502 fixed to the bottom end of the rotating shaft 5 and a chain 501 fixedly installed on the outer wall of the rotating shaft 5. The end of the chain 501 is rotatably connected to the expansion plate 403. It also includes a movable slot 303 opened on the surface of the fixed baffle 3. A rack 503 is installed on the side wall of the movable slot 303. The gear 502 meshes with the rack 503 fixed to the side wall of the movable slot 303, converting linear motion into rotational motion. The chain 501 pulls the expansion plate 403 to slide outwards through the rotational connection, realizing the expansion of the protection area.

[0023] As an implementation manner of the present invention, the extending end of the first electric push rod 302 is fixedly connected to the side wall of the pushing block 402. A pressure rain sensor 301 is installed on the surface of the moving baffle 4. The direct fixed connection reduces the gap and energy loss between the transmission components, ensuring that the moving baffle 4 can quickly respond and complete rapid movement when facing sudden rainfall, and timely block the lens of the temperature measurement camera 2. The pressure rain sensor 301 is directly installed on the surface of the moving baffle 4, improving the timeliness and accuracy of environmental perception.

[0024] As an implementation manner of the present invention, the gear 502 meshes with the rack 503. The rotating shaft 5 is located at the central position of the chain 501. Connecting blocks are provided on the inner side wall positions of the two expansion plates 403 inside the moving baffle 4. The connecting blocks are rotatably connected to the ends of the chain 501. When the moving baffle 4 is driven to move by the first electric push rod 302, the rotating shaft 5 slides along the movable slot 303 synchronously with the baffle. The gear 502 meshes with the rack 503 fixed to the slot wall, causing the rotating shaft 5 to automatically rotate during translation. The rotating shaft 5 is located at the central position of the chain 501, forming a symmetric transmission fulcrum. The two expansion plates 403 are synchronously unfolded outwards under the traction of the chain 501, avoiding jamming or skewing caused by uneven force, making the process of expanding the protection area stable and controllable. The chain 501 has a flexible property and can rotate slightly during the transmission process to adapt to the arc setting of the moving baffle 4, realizing the dynamic expansion of the protection area.

[0025] As an embodiment of the present invention, the second blocking plate 404 is designed in an L shape. The second blocking plate 404 is composed of an arc-shaped plate and a long plate perpendicular to each other. The arc-shaped plate of the second blocking plate 404 is limited and slides within the inner cavity of the moving baffle 4. The arc-shaped plate of the second blocking plate 404 extends along the length direction of the first blocking plate 401. The surface of the long plate of the second blocking plate 404 is designed to be inclined. The second blocking plate 404 extending along the length direction of the first blocking plate 401 and the first blocking plate 401 form a three-dimensional protection structure with double-layer superposition, enhancing the rainwater interception ability. When rainwater impacts the moving baffle 4, the first layer of the first blocking plate 401 first blocks most of the rainwater and diverts it to both sides; the remaining rainwater slides down to the second blocking plate 404 and is completely discharged after secondary interception, effectively preventing rainwater from splashing onto the lens of the temperature measurement camera 2 over the baffle. The inclined surface at the other end of the second blocking plate 404 enables the rainwater to quickly slide down under the action of gravity, effectively reducing the accumulation of rainwater on the plate surface.

[0026] As an embodiment of the present invention, the cleaning assembly includes a second electric push rod 601 installed inside the rainwater collection tank 6, and a limiting groove 603 opened at the top of the inner cavity of the rainwater collection tank 6. A second limiting block 702 slides on the side wall of the limiting groove 603. A sliding rod 705 is installed on the side wall of the limiting groove 603. It also includes a scraper 7 slidably installed on the side wall of the sliding plate 602. A first limiting block 701 is fixed at the top of the scraper 7. The first limiting block 701 is connected to the second limiting block 702 through a first spring 703. The first limiting block 701 is connected to the side wall of the limiting groove 603 through a second spring 704. The second electric push rod 601 serves as the power core and can intelligently adjust the telescopic frequency according to the rainfall intensity feedback by the pressure type rain sensor 301. The combination of the limiting groove 603 and the second limiting block 702 provides a stable guide for the movement of the scraper 7. When the second electric push rod 601 pushes the sliding plate 602 to reciprocate inside the rainwater collection tank 6, the first limiting block 701 at the top of the scraper 7 moves along the inclined side of the limiting groove 603, enabling the scraper 7 to always closely adhere to the sliding plate 602 during the process of following the sliding plate 602's translation under the elastic tension of the first spring 703 and the second spring 704, ensuring the cleaning effect.

[0027] As an embodiment of the present invention, the extending end of the second electric push rod 601 is fixedly connected to the central position of the side wall of the sliding plate 602. The side wall of the limiting groove 603 close to the sliding plate 602 is designed to be inclined. The central connection method enables the thrust of the electric push rod to be evenly distributed on the sliding plate 602, avoiding jamming or wear caused by eccentric torque, ensuring that the sliding plate 602 moves in a straight line with high precision inside the rainwater collection tank 6, reducing the frictional resistance, and extending the service life of the components. When the sliding plate 602 moves towards the end of the rainwater collection tank 6, the first limiting block 701 moves along the inclined surface, enabling the scraper 7 to move horizontally along the hypotenuse during the process of following the sliding plate 602's translation.

[0028] As an implementation manner of the present invention, a second limiting block 702 is slidably limited on the inner wall of the limiting groove 603 away from the sliding plate 602. Both ends of the sliding rod 705 are installed on the two side walls of the limiting groove 603. The sliding rod 705 is parallel to the inclined side wall of the limiting groove 603. The second limiting block 702 ensures that the scraping plate 7 maintains a stable posture during the translation along with the sliding plate 602, avoiding deviation or jamming caused by lateral force. The sliding rod 705 defines the reciprocating movement path of the first limiting block 701.

[0029] As an implementation manner of the present invention, the bottom end of the scraping plate 7 is closely attached to the fixed baffle 3, and the outer wall of the scraping plate 7 is closely attached to the side wall of the sliding plate 602. When the sliding plate 602 reciprocates under the drive of the second electric push rod 601, the scraping plate 7 can completely scrape off the rainwater remaining on its side wall.

[0030] As an implementation manner of the present invention, the first limiting block 701 is located inside the limiting groove 603. The first limiting block 701 is slidably installed on the outer wall of the sliding rod 705. The limiting groove 603 and the sliding rod 705 provide constraints and guidance for the first limiting block 701 to ensure that the scraping plate 7 is always closely attached to the sliding plate 602 during the reciprocating movement.

[0031] Working principle: When using the on-vehicle detection device for non-blind-zone measurement of abnormal heating of catenary components, the operating vehicle 1 carries the temperature measurement camera 2 to dynamically monitor the catenary. The temperature measurement camera 2 is installed at the rear side of the pantograph on the top of the operating vehicle 1 to ensure that the monitoring vision of the temperature measurement camera 2 for the catenary is not blocked and eliminate the detection blind zone. When encountering rainy weather, the pressure rain sensor 301 captures the weather change signal and transmits the data to the controller in real time. The controller adjusts the telescopic amount of the first electric push rod 302 according to the rainfall amount. As the rainfall increases, the feeding amount of the extending end of the first electric push rod 302 increases accordingly. The extending end of the first electric push rod 302 pushes the pushing block 402 to drive the moving baffle 4 to move and block the lens of the temperature measurement camera 2. During the movement of the moving baffle 4, the rotating shaft 5 rotatably installed inside the moving baffle 4 moves synchronously along the moving groove 303. The gear 502 installed at the bottom end of the rotating shaft 5 meshes with the rack 503 fixed inside the moving groove 303. The rotating shaft 5 rotates while moving. The rotating shaft 5 drives the chain 501 fixed on its outer wall to rotate synchronously, pulling the two expansion plates 403 to expand towards both sides of the moving baffle 4, increasing the shielding area, effectively covering the camera lens, and improving the protection range. The second blocking plate 404 provided at the edge of the expansion plate 403 and the first blocking plate 401 at the front end of the moving baffle 4 form a diversion structure. When the rain hits, it quickly slides down along the diversion inclined plane to ensure that the lens is always in the dry protection area under different rainfall intensities, realizing the lens protection for different rainfall intensities; The pressure rain sensor 301 also intelligently adjusts the operating frequency of the second electric push rod 601 through the controller. When the rainfall is small, the second electric push rod 601 pushes the sliding plate 602 at a low frequency to slowly drain the accumulated water in the rain collecting tank 6. When the rainfall increases, the second electric push rod 601 speeds up the pushing frequency to quickly drain the accumulated water and prevent rainwater backflow from threatening the safety of the device. When the sliding plate 602 moves, the scraper 7 that is closely attached to its side wall starts to move under the thrust. The first limit block 701 at the top of the scraper 7 slides along the slide bar 705 installed on the inclined side wall of the limit groove 603. The first spring 703 and the second spring 704 pull the scraper 7, and the scraper 7 closely adheres to the surface of the sliding plate 602 to perform a linear scraping motion to scrape off the residual rainwater on the surface of the sliding plate 602 and prevent the accumulation of rainwater from affecting the device.

[0032] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A vehicle-mounted detection device for non-blind-zone measurement of abnormal heating of catenary components, comprising an operating vehicle (1) and a temperature-measuring camera (2), characterized in that: A temperature measurement camera (2) is installed at the rear of the pantograph on the working side in the running direction of the operating vehicle (1). A fixed baffle (3) is installed on the upper surface of the temperature measurement camera (2). A first electric push rod (302) is installed at the top of the fixed baffle (3). A movable baffle (4) is installed on the surface of the fixed baffle (3) with limited sliding. A propulsion block (402) is fixed inside the top of the movable baffle (4). A first blocking plate (401) is fixed at the top of the movable baffle (4). Expansion plates (403) are symmetrically and slidably installed inside both sides of the movable baffle (4). A second blocking plate (404) is installed on the side wall of the expansion plate (403). A rotating shaft (5) is rotatably installed at the central position inside the movable baffle (4). An expansion component is arranged outside the rotating shaft (5). A rain collecting groove (6) is fixed at the bottom of the fixed baffle (3). A sliding plate (602) is slidably installed in the inner cavity of the rain collecting groove (6). A cleaning component is arranged inside the rain collecting groove (6). The expansion component includes a gear (502) fixed at the bottom end of the rotating shaft (5), and a chain (501) fixedly installed on the outer wall of the rotating shaft (5). The end of the chain (501) is rotatably connected to the expansion plate (403). It also includes a movable groove (303) opened on the surface of the fixed baffle (3), and a rack (503) is installed on the side wall of the movable groove (303).

2. The vehicle-mounted detection device for non-blind-zone measurement of abnormal heating of catenary components according to claim 1, wherein: The extending end of the first electric push rod (302) is fixedly connected to the side wall of the propulsion block (402). A pressure type rain sensor (301) is installed on the surface of the movable baffle (4).

3. The vehicle-mounted detection device for non-blind-zone measurement of abnormal heating of catenary components according to claim 2, wherein: The gear (502) meshes with the rack (503). The rotating shaft (5) is located at the central position of the chain (501). Connecting blocks are arranged at the positions of the inner side walls of the two expansion plates (403) inside the movable baffle (4), and the connecting blocks are rotatably connected to the ends of the chain (501).

4. The vehicle-mounted detection device for non-blind-zone measurement of abnormal heating of catenary components according to claim 3, wherein: The second blocking plate (404) is designed in an L shape. The second blocking plate (404) is composed of an arc-shaped plate and a long plate perpendicular to each other. The arc-shaped plate of the second blocking plate (404) is slidably limited inside the inner cavity of the movable baffle (4). The arc-shaped plate of the second blocking plate (404) extends along the length direction of the first blocking plate (401). The surface of the long plate of the second blocking plate (404) is designed to be inclined.

5. The vehicle-mounted detection device for non-blind-zone measurement of abnormal heating of catenary components according to claim 4, characterized in that: The cleaning component includes a second electric push rod (601) installed inside the rain collecting groove (6), and a limiting groove (603) opened at the top of the inner cavity of the rain collecting groove (6). A second limiting block (702) slides on the side wall of the limiting groove (603). A sliding rod (705) is installed on the side wall of the limiting groove (603). It also includes a scraping plate (7) slidably installed on the side wall of the sliding plate (602). A first limiting block (701) is fixed at the top of the scraping plate (7). The first limiting block (701) is connected to the second limiting block (702) through a first spring (703). The first limiting block (701) is connected to the side wall of the limiting groove (603) through a second spring (704).

6. The vehicle-mounted detection device for blind-zone-free measurement of abnormal heating of catenary components according to claim 5, characterized in that: The extending end of the second electric push rod (601) is fixedly connected to the center position of the side wall of the sliding plate (602), and the side wall of the limiting groove (603) close to the sliding plate (602) is inclined.

7. The vehicle-mounted detection device for non-blind-zone measurement of abnormal heating of catenary components according to claim 6, wherein: A second limiting block (702) is slidably limited on the inner wall of the side of the limiting groove (603) away from the sliding plate (602). Both ends of the sliding rod (705) are installed on the two side walls of the limiting groove (603), and the sliding rod (705) is parallel to the inclined side wall of the limiting groove (603).

8. The vehicle-mounted detection device for non-blind-zone measurement of abnormal heating of catenary components according to claim 7, characterized in that: The bottom end of the scraping plate (7) is closely attached to the fixed baffle (3), and the outer wall of the scraping plate (7) is closely attached to the side wall of the sliding plate (602).

9. The vehicle-mounted detection device for non-blind-zone measurement of abnormal heating of catenary components according to claim 8, characterized in that: The first limiting block (701) is located inside the limiting groove (603), and the first limiting block (701) is slidably installed on the outer wall of the sliding rod (705).

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