A vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots

Abstract

The present invention discloses a vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots, and relates to the field of contact network detection technology. The device comprises an operating vehicle and a temperature measuring camera, wherein the temperature measuring camera is installed on the rear side of the working pantograph in the running direction of the operating vehicle, a fixed baffle is installed on the upper surface of the temperature measuring camera, a movable baffle is installed on the surface of the fixed baffle for limiting sliding, expansion plates are symmetrically installed on both sides of the movable baffle for sliding, a rotating shaft is rotatably installed at the center position of the movable baffle, an expansion component is provided on the outside of the rotating shaft, a rain collecting trough is fixed at the bottom end of the fixed baffle, a sliding plate is slidably installed in the cavity inside the rain collecting trough, and a cleaning component is provided inside the rain collecting trough. The present invention monitors the rainfall intensity in real time through the provided pressure rain sensor, fixed baffle, movable baffle, expansion component and expansion plate, adjusts the moving distance of the movable baffle in real time according to the amount of rainfall, blocks the lens of the temperature measuring camera, and prevents raindrops from affecting the temperature measurement work.

Description

Technical Field

[0001] The present invention relates to the technical field of contact network detection, and in particular to a vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots. Background Art

[0002] The catenary heating measurement device is a key device for monitoring the operating status of catenary equipment in the electrified railway power supply system. It is mainly used to detect temperature changes of key components such as catenary wires, wire clamps, and insulators in real time, prevent heating failures caused by poor contact, overload, etc., and ensure the safety of railway power supply and stable operation. The device is usually composed of a front-end sensing unit, a data transmission module, and a background monitoring system. The front-end sensing unit uses infrared temperature measurement, fiber optic sensing, or wireless temperature sensor technologies to collect temperature data of catenary components and synchronize the real-time temperature data to the background monitoring system. The background system processes the temperature data in real time based on big data analysis and AI algorithms, sets warning thresholds, and automatically triggers sound and light alarms, SMS notifications, and other functions when abnormal temperature rise is detected to assist operation and maintenance personnel in quickly locating the fault point.

[0003] When the interval between vehicles running on the line is long, the temperature of the hot spot drops and returns to its original state. Most of the existing device detection principles can detect the hot spot when the current flows in the opposite direction of the vehicle's operation. When the current flows in the same direction as the vehicle's operation, it is easy to form a detection blind spot, and the detection purpose is not achieved. In addition, the infrared temperature measurement lens used in the detection is the core component of temperature measurement. It focuses the infrared radiation emitted by the target object to the detector to realize real-time collection and analysis of the temperature field. When it rains, raindrops fall on the lens surface. On the one hand, there is a difference between the temperature of the water droplets themselves and the ambient temperature. On the other hand, the curved surface of the raindrops will cause scattering and refraction of infrared radiation, causing the focused light path to be distorted, which may affect the temperature measurement work and cause deviations in the temperature measurement results.

[0004] In response to the above problems, it is urgent to carry out innovative design based on the original foundation. Summary of the Invention

[0005] The purpose of the present invention is to provide a vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots, so as to solve the problem raised in the above background technology that raindrops falling on the lens surface in rainy weather may affect the temperature measurement work. The technical solution of the present invention addresses the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an operating vehicle and a temperature measuring camera, a temperature measuring camera is installed on the rear side of the working pantograph in the running direction of the operating vehicle, a fixed baffle is installed on the upper surface of the temperature measuring camera, a first electric push rod is installed on the top of the fixed baffle, a movable baffle is installed on the surface of the fixed baffle for limiting sliding, a propulsion block is fixed on the inner side of the top of the movable baffle, a first blocking plate is fixed on the top of the movable baffle, expansion plates are symmetrically installed for sliding inside both sides of the movable 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 movable baffle, an expansion component is arranged on the outside of the rotating shaft, a rain collecting trough is fixed to the bottom end of the fixed baffle, a sliding plate is slidably installed in the cavity inside the rain collecting trough, and a cleaning component is arranged inside the rain collecting trough.

[0007] The expansion component includes a gear fixed at the bottom end of the shaft and a chain fixedly installed on the outer wall of the 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 extended end of the first electric push rod is fixedly connected to the side wall of the propulsion block, and a pressure-type rain sensor is installed on the surface of the movable baffle.

[0009] Preferably, the gear and the rack are meshed with each other, the rotating shaft is located at the center of the chain, and the two expansion plates are located at the side walls of the movable baffle and are provided with connecting blocks, which are rotatably connected to the ends of the chain.

[0010] Preferably, the second blocking plate is designed in an L-shape, and the second blocking plate is composed of an arc plate and a long plate perpendicularly. The arc plate of the second blocking plate slides within the internal cavity of the movable baffle, and the arc plate of the second blocking plate extends along the length direction of the first blocking plate. The long plate surface of the second blocking plate is designed to be inclined.

[0011] Preferably, the cleaning assembly includes a second electric push rod installed inside the rain collecting trough, and a limit groove opened at the top of the cavity inside the rain collecting trough, a second limit block is slidably provided on the side wall of the limit groove, a sliding rod is installed on the side wall of the limit groove, and also includes a scraper slidably installed on the side wall of the sliding plate, a first limit block is fixed on the top of the scraper, the first limit block and the second limit block are connected by a first spring, and the first limit block and the side wall of the limit groove are connected by a second spring.

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

[0013] Preferably, the limiting groove has a second limiting block on the inner wall away from the sliding plate for limiting sliding, and 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 walls of the limiting groove.

[0014] Preferably, the bottom end of the scraper is in close contact with the fixed baffle, and the outer wall of the scraper is in close contact with 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 mounted on the outer wall of the sliding rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention monitors rainfall intensity in real time through the pressure-type rain sensor, fixed baffle, movable baffle, expansion component and expansion board, adjusts the moving distance of the movable baffle in real time according to the amount of rainfall, blocks the temperature measuring camera lens, quickly isolates the contact between raindrops and the lens surface, and prevents raindrops from affecting the temperature measurement work; while the movable baffle moves, the expansion board extends outward synchronously with the cooperation of the expansion component, thereby increasing the blocking area, effectively covering the camera lens, and improving the protection range; a second blocking plate is provided at the edge of the expansion board, which cooperates with the first blocking plate provided at the front end of the movable baffle to form a diversion structure, quickly draining rainwater, realizing lens protection for different rainfall intensities, avoiding temperature measurement errors caused by raindrop adhesion, and preventing rainwater from seeping into the equipment.

[0018] 2. The present invention adjusts the operating frequency of the second electric push rod in real time according to the amount of rainfall through the rain collecting trough, cleaning component and sliding plate. The second electric push rod pushes the sliding plate to clean the rainwater accumulated inside the rain collecting trough and empty the rain collecting trough to avoid the impact of rainwater accumulation on the device. While the sliding plate moves, with the cooperation of the cleaning component, the scraper always fits tightly to the surface of the sliding plate and moves back and forth along the limit groove to scrape off the rainwater accumulated on the surface of the sliding plate, thereby reducing the risk of corrosion of the device by residual rainwater and maintaining the stable operation of the device in a continuous rainfall environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the temperature measuring camera of the present invention when viewed from above;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the temperature measuring camera of the present invention;

[0022] Figure 4 This is a sectional view of the three-dimensional structure of the temperature measuring camera of the present invention;

[0023] Figure 5 For the present invention Figure 4 A in the middle is an enlarged structural diagram;

[0024] Figure 6 It is a structural diagram of the expansion component of the present invention;

[0025] Figure 7 For the present invention Figure 6The enlarged structural diagram at B in the middle;

[0026] Figure 8 This is a schematic diagram of the partial structure of the rotating shaft and gears of the present invention;

[0027] Figure 9 It is a schematic diagram of the disassembled structure of the rain collecting trough, sliding plate, limiting groove, scraper, first limiting block, second limiting block, first spring, second spring and sliding rod of the present invention.

[0028] In the figure: 1. Operating vehicle; 2. Temperature measuring camera; 3. Fixed baffle; 301. Pressure rain sensor; 302. First electric push rod; 303. Movable slot; 4. Moving baffle; 401. First blocking plate; 402. Propulsion block; 403. Expansion plate; 404. Second blocking plate; 5. Rotating shaft; 501. Chain; 502. Gear; 503. Rack; 6. Rain collecting trough; 601. Second electric push rod; 602. Sliding plate; 603. Limiting slot; 7. Scraper; 701. First limiting block; 702. Second limiting block; 703. First spring; 704. Second spring; 705. Sliding rod. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1-9The present invention provides a technical solution: a vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots, comprising an operating vehicle 1 and a temperature measuring camera 2. The operating vehicle 1 is provided with a temperature measuring camera 2 on the rear side of a working pantograph in the running direction. A fixed baffle 3 is provided on the upper surface of the temperature measuring camera 2. A first electric push rod 302 is provided on the top of the fixed baffle 3. A movable baffle 4 is provided on the surface of the fixed baffle 3 for limited sliding. A pushing block 402 is fixed on the inner side of the top of the movable baffle 4. A first blocking plate 401 is fixed on the top of the movable baffle 4. Expansion plates 403 are symmetrically slidably installed on the inside of the two sides of the movable baffle 4. The side walls of the expansion plates 403 A second blocking plate 404 is installed, a rotating shaft 5 is rotatably installed at the inner center position of the movable baffle 4, an extension component is provided on the outer side of the rotating shaft 5, a rain collecting trough 6 is fixed to the bottom end of the fixed baffle 3, a sliding plate 602 is slidably installed in the inner cavity of the rain collecting trough 6, a cleaning component is provided inside the rain collecting trough 6, the temperature measuring camera 2 is located at the rear side of the pantograph to ensure that the temperature measuring camera 2 has no obstruction in its monitoring field of view of the contact network, 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 realize flexible protection, and the expansion plate 403 expands the protection area to ensure all-round coverage of the lens.

[0031] 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. The side wall of the movable groove 303 is installed with a rack 503. The gear 502 engages with the rack 503 fixed on the side wall of the movable groove 303 to convert linear motion into rotational motion. The chain 501 pulls the expansion plate 403 to slide outward through the rotational connection, thereby expanding the protection area.

[0032] As an embodiment of the present invention, the protruding end of the first electric push rod 302 is fixedly connected to the side wall of the propulsion block 402, and a pressure-type rain sensor 301 is installed on the surface of the movable baffle 4. The direct fixed connection reduces the gap and energy loss between the transmission components, ensuring that the movable baffle 4 can respond quickly and complete rapid movement when facing sudden rainfall, and timely block the lens of the temperature measuring camera 2. The pressure-type rain sensor 301 is directly installed on the surface of the movable baffle 4, which improves the timeliness and accuracy of environmental perception.

[0033] As an embodiment of the present invention, the gear 502 and the rack 503 are meshed with each other, the rotating shaft 5 is located at the center of the chain 501, and the two expansion plates 403 are located at the inner side wall of the movable baffle 4 and are provided with connecting blocks. The connecting blocks are rotatably connected to the end of the chain 501. When the movable baffle 4 is driven to move by the first electric push rod 302, the rotating shaft 5 slides along the movable groove 303 synchronously with the baffle, and the gear 502 is meshed with the rack 503 fixed on the groove wall, so that the rotating shaft 5 rotates automatically during the translation process. The rotating shaft 5 is located at the center of the chain 501, forming a symmetrical transmission fulcrum. The expansion plates 403 on both sides are synchronously expanded outward under the traction of the chain 501, avoiding jamming or deflection due to uneven force, so that the expansion process of the protection area is smooth and controllable. The chain 501 has flexible characteristics and can rotate slightly during the transmission process to adapt to the curvature setting of the movable baffle 4, thereby realizing dynamic expansion of the protection area.

[0034] 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 plate and a long plate perpendicularly. The arc plate of the second blocking plate 404 slides within the internal cavity of the movable baffle 4. The arc plate of the second blocking plate 404 extends along the length direction of the first blocking plate 401. The long plate surface of the second blocking plate 404 is inclined. The second blocking plate 404 extending along the length direction of the first blocking plate 401 is in contact with the first blocking plate 401. 1 forms a double-layered three-dimensional protective structure, which enhances the rainwater interception capability. When rainwater hits the movable baffle 4, the first blocking plate 401 of the first layer 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 the second interception, effectively preventing rainwater from splashing over the baffle and onto the lens of the temperature measuring camera 2. The inclined surface at the other end of the second blocking plate 404 causes rainwater to slide quickly under the action of gravity, effectively reducing the accumulation of rainwater on the plate surface.

[0035] As an embodiment of the present invention, the cleaning component includes a second electric push rod 601 installed inside the rain collecting trough 6, and a limiting groove 603 opened at the top of the internal cavity of the rain collecting trough 6, the side wall of the limiting groove 603 is slidably provided with a second limiting block 702, the side wall of the limiting groove 603 is installed with a sliding rod 705, and also includes a scraper 7 slidably installed on the side wall of the sliding plate 602, the top of the scraper 7 is fixed with a first limiting block 701, the first limiting block 701 and the second limiting block 702 are connected by a first spring 703, the first limiting block 701 and the side wall of the limiting groove 603 are connected by a second spring 704, and the second electric push rod 601 is connected to the second limiting block 702. The push rod 601 serves as the power core and can intelligently adjust the extension and retraction frequency according to the rainfall intensity feedback from the pressure rain sensor 301. The combination of the limit groove 603 and the second limit 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 move back and forth in the rain collecting trough 6, the first limit block 701 at the top of the scraper 7 moves along the inclined side of the limit groove 603, so that when the scraper 7 follows the sliding plate 602 to move horizontally, the elastic tension of the first spring 703 and the second spring 704 makes the scraper 7 always close to the sliding plate 602, thereby ensuring the cleaning effect.

[0036] As an embodiment of the present invention, the protruding 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 limiting groove 603 is inclined near the side wall of the sliding plate 602. The central connection method makes the thrust of the electric push rod evenly distributed on the sliding plate 602, avoiding jamming or wear caused by eccentric torque, ensuring the accurate trajectory of the sliding plate 602 when performing linear reciprocating motion in the rain collecting trough 6, reducing friction resistance, and extending the service life of components. When the sliding plate 602 moves toward the end of the rain collecting trough 6, the first limiting block 701 moves along the inclined surface, so that the scraper 7 can move laterally along the oblique edge while following the translation of the sliding plate 602.

[0037] As an embodiment of the present invention, a second limit block 702 is provided on the inner wall of the limit groove 603 away from the sliding plate 602 for limiting sliding. Both ends of the slide rod 705 are installed on the two side walls of the limit groove 603. The slide rod 705 is parallel to the inclined side wall of the limit groove 603. The second limit block 702 ensures that the scraper 7 maintains a stable posture during the translation process with the sliding plate 602 to avoid offset or jamming caused by lateral force. The slide rod 705 limits the reciprocating movement path of the first limit block 701.

[0038] As an embodiment of the present invention, the bottom end of the scraper 7 is close to the fixed baffle 3, and the outer wall of the scraper 7 is close 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 scraper 7 can completely scrape off the rainwater remaining on its side wall.

[0039] As an embodiment of the present invention, the first limit block 701 is located inside the limit groove 603, and the first limit block 701 is slidably installed on the outer wall of the slide rod 705. The limit groove 603 and the slide rod 705 provide constraints and guidance for the first limit block 701, ensuring that the scraper 7 is always in close contact with the sliding plate 602 during reciprocating motion.

[0040] Working principle: When using the vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots, the operating vehicle 1 is equipped with a temperature measuring camera 2 to dynamically monitor the contact network. The temperature measuring camera 2 is installed on the rear side of the pantograph on the top of the operating vehicle 1 to ensure that the temperature measuring camera 2's monitoring field of view of the contact network is not blocked, eliminating the detection blind spots. When it rains, the pressure rain sensor 301 captures weather change signals and transmits data to the controller in real time. The controller adjusts the extension and retraction amount of the first electric push rod 302 according to the amount of rainfall. As the rainfall increases, the feed amount of the protruding end of the first electric push rod 302 increases accordingly. The protruding end of the first electric push rod 302 pushes the propulsion block 402, driving the movable baffle 4 to move, blocking the lens of the temperature measuring camera 2, and the movable baffle 4 During the movement, the rotating shaft 5 rotatably installed inside the movable baffle 4 moves synchronously along the movable groove 303, and the gear 502 installed at the bottom end of the rotating shaft 5 meshes with the rack 503 fixed inside the movable groove 303. The rotating shaft 5 rotates while moving, and the rotating shaft 5 drives the chain 501 fixed on the outer wall to rotate synchronously, pulling the two expansion plates 403 to expand to both sides of the movable baffle 4, thereby increasing the shielding area, effectively covering the camera lens, and improving the protection range. The second blocking plate 404 set on the edge of the expansion plate 403 and the first blocking plate 401 at the front end of the movable baffle 4 form a diversion structure. When rainwater hits it, it slides quickly along the diversion slope, ensuring that the lens is always in a dry protection area under different rainfall intensities, thereby achieving lens protection for different rainfall intensities;

[0041] The pressure-type 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 trough 6. When the rainfall increases, the second electric push rod 601 speeds up the pushing frequency to quickly empty the accumulated water to prevent rainwater from flowing back and threatening the safety of the device. When the sliding plate 602 moves, the scraper 7 that is tightly fitted with its side wall begins to move under the thrust. The first limit block 701 at the top of the scraper 7 slides along the slide rod 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. The scraper 7 is close to the surface of the sliding plate 602 and performs a linear scraping motion to scrape off the residual rainwater on the surface of the sliding plate 602 to prevent rainwater accumulation from affecting the device.

[0042] Any content not described in detail in this specification is prior art known to those skilled in the art. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Terms such as "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings and are intended solely for ease of description and simplification. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation and are therefore not to be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, unless otherwise specified or limited, the terms "connected" and "connected" are to be understood broadly, meaning, for example, fixedly connected, detachably connected, or integrally connected; mechanically connected, electrically connected; directly connected, or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention on a case-by-case basis.

[0043] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots, comprising an operating vehicle (1) and a temperature measuring camera (2), characterized in that: A temperature measuring camera (2) is installed on the rear side of the pantograph in the running direction 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 on 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 propulsion block (402) is fixed on the inner side of the top of the movable baffle (4), a first blocking plate (401) is fixed on the top of the movable baffle (4), expansion plates (403) are symmetrically installed on both sides of the movable baffle (4) in a sliding manner, 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 center position of the interior of the movable baffle (4), an expansion component is provided on the outside of the rotating shaft (5), and a rain collecting trough (6) is fixed on the bottom end of the fixed baffle (3). A sliding plate (602) is slidably installed in the inner cavity of the rain collecting trough (6), and a cleaning component is provided inside the rain collecting trough (6), and the cleaning component includes a second electric push rod (601) installed inside the rain collecting trough (6), and a limiting groove (603) opened at the top of the inner cavity of the rain collecting trough (6), a second limiting block (702) is slidably installed on the side wall of the limiting groove (603), a sliding rod (705) is installed on the side wall of the limiting groove (603), and also includes a scraper (7) slidably installed on the side wall of the sliding plate (602), a first limiting block (701) is fixed on the top of the scraper (7), the first limiting block (701) and the second limiting block (702) are connected by a first spring (703), and the first limiting block (701) and the side wall of the limiting groove (603) are connected by a second spring (704); 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), and also includes a movable groove (303) opened on the surface of the fixed baffle (3), a rack (503) is installed on the side wall of the movable groove (303), and the gear (502) and the rack (503) are meshed with each other.

2. The vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots according to claim 1 is characterized in that: The extended end of the first electric push rod (302) is fixedly connected to the side wall of the propulsion block (402), and a pressure-type rain sensor (301) is installed on the surface of the movable baffle (4).

3. The vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots according to claim 2, characterized in that: The rotating shaft (5) is located at the center of the chain (501), and the two expansion plates (403) are located at the inner side walls of the movable baffle (4) and are provided with connecting blocks, which are rotatably connected to the ends of the chain (501).

4. The vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots according to claim 3 is characterized in that: The second blocking plate (404) is designed to be L-shaped. The second blocking plate (404) is composed of a curved plate and a long plate perpendicularly arranged. The curved plate of the second blocking plate (404) slides within the internal cavity of the movable baffle (4). The curved 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 measuring abnormal heating of contact network components without blind spots according to claim 4, characterized in that: The extended 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 limiting groove (603) is designed to be inclined near the side wall of the sliding plate (602).

6. The vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots according to claim 5, characterized in that: The limiting groove (603) is provided with a second limiting block (702) on the inner wall of one side away from the sliding plate (602) for limiting sliding. The two 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).

7. The vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots according to claim 6, characterized in that: The bottom end of the scraper (7) is in close contact with the fixed baffle (3), and the outer wall of the scraper (7) is in close contact with the side wall of the sliding plate (602).

8. The vehicle-mounted detection device for measuring abnormal heating of contact network components without blind spots according to claim 7, characterized in that: The first limiting block (701) is located inside the limiting groove (603), and the first limiting block (701) is slidably mounted on the outer wall of the sliding rod (705).

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