Railway mobile equipment anti-collision early warning device

The collision warning device, which uses a purely mechanical structure, employs a detection radar and a buffer spring gear tooth plate structure to achieve collision warning. This solves the problem of electronic warning devices failing in complex environments in existing technologies, and improves the safety and reliability of railway mobile equipment.

CN122232683APending Publication Date: 2026-06-19CHINA RAILWAY NO 3 GRP CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY NO 3 GRP CO LTD
Filing Date
2026-02-28
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing collision warning devices for railway mobile equipment are prone to signal interruption or component failure in complex environments, resulting in warning failure and posing a collision risk.

Method used

The collision warning device, which adopts a purely mechanical structure, includes a detection radar, a collision avoidance component, and a guard plate component. It achieves collision warning through mechanical linkage, displays the degree of collision using a buffer spring and gear plate structure, and provides side protection in conjunction with the guard plate component.

Benefits of technology

In complex environments, it effectively avoids the failure of early warning systems due to electronic system malfunctions, and directly displays the degree of collision through mechanical structures, reducing equipment damage and improving safety and reliability.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This invention provides a collision warning device for railway mobile equipment, belonging to the technical field of railway mobile equipment. The device includes an external base, a collision prevention component, and a warning component. The external base has a crossbeam and an observation port, with the observation port located above the crossbeam. Warning strips are installed on both sides of the observation port. The collision prevention component includes a sliding plate, a first buffer spring, a movable plate, and a semi-circular buffer plate. In this invention, collision warning linkage is achieved through a purely mechanical structure. When an external impact triggers the sliding plate to move, it simultaneously drives a guide push rod and a strip-shaped toothed plate to rotate a ring gear. By directly observing the relative position between the observation plate and the warning strips, the degree of external collision when the equipment stops can be determined, eliminating the need for electronic signal relay and avoiding protection failure due to electronic system malfunctions.
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Description

Technical Field

[0001] This invention belongs to the technical field of railway mobile equipment, and specifically discloses a collision avoidance and early warning device for railway mobile equipment. Background Technology

[0002] When railway mobile equipment (such as shunting locomotives, rail cranes, and overhead contact line maintenance vehicles) operates in railway hubs, freight yards, and line maintenance sites, it often needs to start and stop frequently to complete tasks such as material transfer and equipment maintenance. The collision risk during the stopping phase is particularly prominent. When such equipment is parked, there may be temporary piles of maintenance tools, parts boxes, and other debris next to the track. Other mobile equipment may be passing by on adjacent lines. Moreover, on-site workers need to perform line inspections and component replacements around the equipment. Collisions between personnel or objects and equipment are likely to occur due to obstructed vision or operational negligence.

[0003] Traditional collision avoidance measures mostly rely on manual observation or simple electronic warning devices. Manual observation has blind spots, while electronic warning devices are prone to signal interruption and component failure in complex environments such as strong electromagnetic interference, high and low temperatures, dust and humidity on railways, leading to warning failure. Once a collision occurs, it will not only cause damage to equipment components and increase maintenance costs, but may also delay railway transportation scheduling or cause personnel safety accidents. Therefore, it is necessary to propose a collision avoidance warning device for railway mobile equipment. Summary of the Invention

[0004] This invention proposes a collision avoidance and early warning device for railway mobile equipment to solve the problems of blind spots in the field of vision of manual observation in the prior art, and the fact that electronic early warning devices are prone to signal interruption and component failure in complex environments such as strong electromagnetic interference, high and low temperatures, dust and humidity in railway outdoor environments, leading to early warning failure.

[0005] The aforementioned railway mobile equipment anti-collision warning device includes an external base, an anti-collision component, and a warning component. The external base is equipped with a crossbeam and an observation port, with the observation port located above the crossbeam and warning strips on both sides of the observation port. The anti-collision component includes a sliding plate, a first buffer spring, a movable plate, and a semi-circular buffer plate. The sliding plate is slidably mounted on the crossbeam, and the sliding plate and crossbeam are connected by the first buffer spring. The two ends of the movable plate are rotatably connected to the sliding plate and the semi-circular buffer plate, respectively. The warning component includes a guide push rod, a strip-shaped toothed plate, and a ring gear. The guide push rod slides through the crossbeam, and its two ends are connected to the semi-circular buffer plate and the strip-shaped toothed plate, respectively. The ring gear is rotatably mounted on the external base and meshes with the strip-shaped toothed plate. An observation plate is fixedly connected to the outside of the ring gear, and the observation plate passes through the observation port.

[0006] The aforementioned anti-collision warning device for railway mobile equipment has a detection radar installed on its external base.

[0007] The aforementioned anti-collision warning device for railway mobile equipment includes an anti-collision component that further includes a compression box; the compression box is mounted on a crossbeam and has a sliding groove inside; a sliding plate is slidably connected to the sliding groove, and a first buffer spring is fixedly connected between the sliding plate and the sliding groove.

[0008] The aforementioned anti-collision warning device for railway mobile equipment includes an anti-collision component that also includes a force-bearing horizontal plate and a second buffer spring. The force-bearing horizontal plate is fixedly connected to the straight edge of the semi-circular buffer plate, and a connector is provided on the force-bearing horizontal plate. The connector is rotatably connected to the movable plate. The second buffer spring is sleeved on the guide push rod, and its two ends abut against the force-bearing horizontal plate and the crossbeam, respectively.

[0009] The aforementioned anti-collision warning device for railway mobile equipment also includes a guard plate assembly and a guard plate drive assembly; the guard plate assembly includes a first sector-shaped guard plate and a second sector-shaped guard plate; the first sector-shaped guard plate and the second sector-shaped guard plate are slidably connected to both ends of the crossbeam respectively; the first sector-shaped guard plate and the second sector-shaped guard plate are driven to close and form a closed structure with the crossbeam through the guard plate drive assembly, thereby enclosing the anti-collision assembly inside.

[0010] In the aforementioned anti-collision warning device for railway mobile equipment, the inner walls of the first and second sector-shaped guard plates are provided with toothed structures; the guard plate driving assembly includes a first motor, a first rotating gear shaft, a rotating shaft, and a second rotating gear shaft; the output end of the first motor is fixedly connected to the first rotating gear shaft, driving the first rotating gear shaft to rotate; the gear segment of the first rotating gear shaft meshes with the toothed structure of the first sector-shaped guard plate; both the rotating shaft and the second rotating gear shaft are rotatably mounted on an external base; a main gear disk is provided on the rotating shaft, and the rotating shaft and the first rotating gear shaft are connected by a transmission belt; a driven gear disk is provided on the second rotating gear shaft, and the driven gear disk meshes with the main gear disk; the gear segment of the second rotating gear shaft meshes with the toothed structure of the second sector-shaped guard plate.

[0011] The aforementioned anti-collision warning device for railway mobile equipment also includes a guard plate limiting assembly; the outer walls of the first sector guard plate and the second sector guard plate are provided with multiple sets of triangular ratchet plates; the guard plate limiting assembly includes a return spring, a limiting block, and a second motor; the two ends of the return spring are respectively connected to the output ends of the limiting block and the second motor, and the second motor drives the return spring and the limiting block to extend and retract; the limiting block is adapted to engage with the triangular ratchet plate.

[0012] In the aforementioned anti-collision warning device for railway mobile equipment, the guard plate limiting component also includes a limiting plate, which is used to restrict the lateral movement of the limiting block.

[0013] In the aforementioned anti-collision warning device for railway mobile equipment, two sets of support frames are installed on the external base; the crossbeam is set between the two sets of support frames; the second motor and the limiting plate are both installed on the support frames.

[0014] In the aforementioned anti-collision warning device for railway mobile equipment, both the first and second buffer springs are made of high-strength spring steel, and their surfaces are treated with anti-corrosion measures.

[0015] Compared with the prior art, the present invention has the following beneficial effects.

[0016] In this invention, anti-collision warning linkage is achieved through a purely mechanical structure. When an external impact triggers the sliding plate to move, it can simultaneously drive the guide push rod and the strip toothed plate to drive the ring gear to rotate. By directly observing the relative position between the observation plate and the warning strip, the degree of external collision when the equipment stops can be known. No electronic signal relay is required, thus avoiding protection failure due to electronic system failure. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of a collision avoidance and early warning device for railway mobile equipment; Figure 2 A schematic diagram of the overall side view structure of a collision avoidance and early warning device for railway mobile equipment; Figure 3 A schematic cross-sectional view of the overall structure of a collision avoidance and early warning device for railway mobile equipment; Figure 4 This is a schematic diagram of the early warning component. Figure 5 This is a schematic diagram of the overall structure of the anti-collision component; Figure 6 This is a side view of the anti-collision component. Figure 7 for Figure 3 Enlarged view of point A in the middle; Figure 8 for Figure 5 Enlarged diagram of point B in the middle.

[0019] Explanation of reference numerals in the attached figures: 1. External base; 2. U-shaped support frame; 3. Crossbeam; 4. Warning strip; 501. First motor; 502. First rotating gear shaft; 503. Rotating shaft; 504. Main gear plate; 505. Transmission belt; 506. Second rotating gear shaft; 507. Driven gear plate; 601. First sector-shaped guard plate; 602. Second sector-shaped guard plate; 603. Triangular ratchet plate; 701. Return spring; 702. Limit block; 703. Limit plate; 704. Second motor; 801. Compression box; 802. Sliding groove; 803. Sliding plate; 804. First buffer spring; 805. Movable plate; 806. Connecting piece; 807. Force-bearing horizontal plate; 808. Semi-circular buffer plate; 809. Second buffer spring; 901. Guide push rod; 902. Strip toothed plate; 903. Ring gear; 904. Observation plate; 10. Detection radar. Detailed Implementation

[0020] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] This embodiment provides a collision warning device for railway mobile equipment, including an external base 1, a collision prevention component, and a warning component. The external base 1 is provided with a crossbeam 3 and an observation port, the observation port being located above the crossbeam 3. Warning strips 4 are provided on both sides of the observation port, with different warning colors or markings on the warning strips 4 to indicate the degree of collision. The collision prevention component includes a sliding plate 803, a first buffer spring 804, a movable plate 805, and a semi-circular buffer plate 808. The sliding plate 803 is slidably mounted on the crossbeam 3, and the sliding plate 803 and the crossbeam 3 are connected by a first buffer spring 804. A buffer spring 804 is connected; the two ends of the movable plate 805 are rotatably connected to the sliding plate 803 and the semi-circular buffer plate 808 respectively; the warning assembly includes a guide push rod 901, a strip toothed plate 902 and a ring gear 903; the guide push rod 901 slides through the crossbeam 3, and its two ends are connected to the semi-circular buffer plate 808 and the strip toothed plate 902 respectively; the ring gear 903 is rotatably mounted on the external base 1 and meshes with the strip toothed plate 902, and an observation plate 904 is fixedly connected to the outside of the ring gear 903, and the observation plate 904 passes through the observation port.

[0022] The external base 1 of the aforementioned railway mobile equipment anti-collision warning device is connected to the railway mobile equipment. When the railway mobile equipment stops, if there is a risk of collision, the anti-collision component is activated. If an external object approaches the equipment and contacts the semi-circular buffer plate 808, the semi-circular buffer plate 808 first initially offsets part of the collision force through its own elastic deformation, and at the same time transmits the remaining impact force to the movable plate 805. The movable plate 805 pushes the sliding plate 803 to move along the preset trajectory of the crossbeam 3. The sliding plate 803 compresses the outer first buffer spring 804, and the first buffer spring 804... The deformation further absorbs the impact force, preventing equipment from being damaged by collision. At the same time, the guide push rod 901 on the crossbeam 3 slides synchronously with the movement of the semi-circular buffer plate 808, driving the strip toothed plate 902 connected to it to make linear movements. The strip toothed plate 902 drives the ring gear 903 to rotate through tooth meshing. The observation plate 904 on the outside of the ring gear 903 rotates with the ring gear 903 until it aligns with a certain warning color or mark on the warning strip 4 on the external base 1, visually reminding on-site personnel to clear obstacles or adjust the position of equipment in time to avoid collision risks.

[0023] In the aforementioned anti-collision warning device for railway mobile equipment, a detection radar 10 is installed on the external base 1.

[0024] Once the railway mobile equipment stops, the detection radar 10 immediately enters working mode and continuously scans obstacles within a 5-10 meter range around the equipment. By transmitting and receiving radar waves, it analyzes the distance, volume, and movement trend of obstacles using existing technologies. If a collision risk is determined to exist, such as when the distance to an obstacle is less than the safety threshold, subsequent protection procedures are triggered.

[0025] The aforementioned anti-collision warning device for railway mobile equipment includes an anti-collision component that further includes a compression box 801; the compression box 801 is mounted on the crossbeam 3, and a sliding groove 802 is provided inside the compression box 801; a sliding plate 803 is slidably connected to the sliding groove 802, and a first buffer spring 804 is fixedly connected between the sliding plate 803 and the sliding groove 802.

[0026] When the railway moving equipment stops and the detection radar 10 determines that there is a collision risk and the anti-collision component is activated, if an external object hits the semi-circular buffer plate 808, the impact force is transmitted to the sliding plate 803 through the movable plate 805. The sliding plate 803 slides stably along a preset trajectory in the sliding groove 802 in the compression box 801. The sliding groove 802 is set to prevent the sliding plate 803 from deviating so as to ensure the accuracy of the buffer direction. During the movement of the sliding plate 803, it compresses the first buffer spring 804 between itself and the sliding groove 802. The first buffer spring 804 absorbs the impact energy through elastic deformation. At the same time, the compression box 801 provides a closed and stable installation space for the sliding plate 803 and the first buffer spring 804 to ensure that the buffering process is carried out in an orderly manner to reduce the damage to the equipment caused by the collision.

[0027] The aforementioned anti-collision warning device for railway mobile equipment includes an anti-collision component that further comprises a force-bearing horizontal plate 807 and a second buffer spring 809. The force-bearing horizontal plate 807 is fixedly connected to the straight edge of the semi-circular buffer plate 808, and a connecting piece 806 is provided on the force-bearing horizontal plate 807. The connecting piece 806 is rotatably connected to the movable plate 805. The second buffer spring 809 is sleeved on the guide push rod 901, and its two ends abut against the force-bearing horizontal plate 807 and the crossbeam 3, respectively.

[0028] When the railway moving equipment stops and the anti-collision components are activated, and an external object impacts the semi-circular buffer plate 808, the semi-circular buffer plate 808 first buffers the impact force through its own elastic deformation, and then transfers the remaining impact force to the force-bearing horizontal plate 807 fixed to it. The force-bearing horizontal plate 807 bears the impact force and transmits it to the movable plate 805 through the connector 806. The connector 806 adapts to the angle change during the impact force transmission process due to its movable connection characteristics, avoiding the rigid connection from breaking. At the same time, the force-bearing horizontal plate 807 moves towards the beam 3 under the action of the impact force, compressing the second buffer spring 809 between it and the beam 3. The second buffer spring 809 further absorbs the impact energy through elastic deformation, and works in synergy with the first buffer spring 804 to minimize the impact damage to the equipment.

[0029] The aforementioned anti-collision warning device for railway mobile equipment also includes a guard plate assembly and a guard plate drive assembly; the guard plate assembly includes a first sector-shaped guard plate 601 and a second sector-shaped guard plate 602; the first sector-shaped guard plate 601 and the second sector-shaped guard plate 602 are slidably connected to both ends of the crossbeam 3 respectively; the first sector-shaped guard plate 601 and the second sector-shaped guard plate 602 are driven to close by the guard plate drive assembly to form a closed structure with the crossbeam 3, enclosing the anti-collision assembly inside, and providing protection in the non-working state.

[0030] When the railway moving equipment stops and the detection radar 10 determines that there is a risk of collision, the guard plate drive assembly drives the two sector guard plates to slide and unfold along both ends of the crossbeam 3 respectively. After the first sector guard plate 601 and the second sector guard plate 602 unfold, the semi-circular buffer plate 808 will be exposed.

[0031] In the aforementioned anti-collision warning device for railway mobile equipment, the inner walls of the first sector-shaped guard plate 601 and the second sector-shaped guard plate 602 are provided with toothed structures; the guard plate driving assembly includes a first motor 501, a first rotating gear shaft 502, a rotating shaft 503, and a second rotating gear shaft 506; the output end of the first motor 501 is fixedly connected to the first rotating gear shaft 502, driving the first rotating gear shaft 502 to rotate; the gear segment of the first rotating gear shaft 502 meshes with the toothed structure of the first sector-shaped guard plate 601; the rotating shaft 503 and the second rotating gear shaft 506 are both rotatably mounted on the external base 1; a main gear disk 504 is provided on the rotating shaft 503, and the rotating shaft 503 and the first rotating gear shaft 502 are connected by a transmission belt 505; a driven gear disk 507 is provided on the second rotating gear shaft 506, and the driven gear disk 507 meshes with the main gear disk 504; the gear segment of the second rotating gear shaft 506 meshes with the toothed structure of the second sector-shaped guard plate 602. In this embodiment, the first motor 501 is a servo motor.

[0032] The first motor 501 drives the first rotating gear shaft 502, the transmission belt 505 and the rotating shaft 503 to rotate, thereby causing the second rotating gear shaft 506 to rotate. The first rotating gear shaft 502 drives the first sector-shaped guard plate 601, and the second rotating gear shaft 506 drives the second sector-shaped guard plate 602 to slide and unfold along both ends of the crossbeam 3.

[0033] The aforementioned anti-collision warning device for railway mobile equipment also includes a guard plate limiting assembly; the outer walls of the first sector-shaped guard plate 601 and the second sector-shaped guard plate 602 are provided with multiple sets of triangular ratchet plates 603; the guard plate limiting assembly includes a return spring 701, a limiting block 702, and a second motor 704; the two ends of the return spring 701 are respectively connected to the output ends of the limiting block 702 and the second motor 704, and the second motor 704 drives the return spring 701 and the limiting block 702 to extend and retract; the limiting block 702 is adapted to engage with the triangular ratchet plate 603. In this embodiment, the second motor 704 is a telescopic motor.

[0034] When the rotating gear shaft drives the sector-shaped guard plate to slide and unfold along the crossbeam 3 to construct a side protection barrier, the second motor 704 is initially inactive. As the sector-shaped guard plate 601 and the second sector-shaped guard plate 602 slide, the multiple sets of triangular ratchet plates 603 intermittently push against the limiting block 702. Upon being pushed, the limiting block 702 compresses the return spring 701, causing it to elastically deform, providing clearance for the smooth sliding of the sector-shaped guard plate and preventing it from jamming. Once the sector-shaped guard plate slides to the preset side protection position, the second motor 704 starts, and its output pushes the return spring 701... The positioning spring 701 and the limiting block 702 move towards the triangular ratchet plate 603, causing the limiting block 702 to engage with the triangular ratchet plate 603 at the corresponding position. The triangular ratchet plate 603 provides a stable engagement point for the limiting block 702. The limiting block 702 can restrict the first sector-shaped guard plate 601 and the second sector-shaped guard plate 602 from sliding in opposite directions. The return spring 701 maintains the tight engagement between the limiting block 702 and the triangular ratchet plate 603 through its own elastic tension, ultimately fixing the protective positions of the first sector-shaped guard plate 601 and the second sector-shaped guard plate 602 and ensuring the stability of the side impact protection.

[0035] In the aforementioned anti-collision warning device for railway mobile equipment, the guard plate limiting component also includes a limiting plate 703. The limiting plate 703 is used to restrict the lateral movement of the limiting block 702 and prevent the limiting block 702 from deviating from the preset trajectory that cooperates with the triangular ratchet plate 603 due to lateral displacement caused by force or motor thrust.

[0036] In the aforementioned anti-collision warning device for railway mobile equipment, two sets of support frames 2 are installed on the external base 1; the crossbeam 3 is installed between the two sets of support frames 2; the second motor 704 and the limiting plate 703 are both installed on the support frames 2.

[0037] In the aforementioned anti-collision warning device for railway mobile equipment, both the first buffer spring 804 and the second buffer spring 809 are made of high-strength spring steel, and their surfaces are treated with anti-corrosion measures.

[0038] When the railway mobile equipment stops and the anti-collision components are activated, and an external object impacts the semi-circular buffer plate 808, the impact force is transmitted to the second buffer spring 809 through the force-bearing cross plate 807. The second buffer spring 809, with its excellent elasticity and deformation resistance of high-strength spring steel, efficiently absorbs part of the impact energy through compression deformation, avoiding the loss of buffer function due to insufficient material strength causing spring breakage or permanent deformation. The first buffer spring 804, also made of high-strength spring steel, further absorbs the impact force through elastic deformation, working together with the second buffer spring 809 to weaken the damage to the equipment caused by the collision. At the same time, since railway mobile equipment is often in outdoor or humid, dusty and other complex environments, the anti-corrosion treatment on the surface of the two buffer springs can effectively isolate moisture and impurities from corroding the spring steel, preventing the springs from rusting or being corroded and reducing their elastic performance.

[0039] The specific implementation method of the above-mentioned anti-collision warning device for railway mobile equipment is as follows: When the railway mobile equipment stops, the detection radar 10 is immediately activated and continuously scans obstacles within a range of 5-10 meters. The radar wave analysis determines the collision risk. If a risk exists, the protection process is triggered. The first motor 501 is activated, driving the first rotating gear shaft 502 to rotate. The power is transmitted to the main gear disk 504 of the rotating shaft 503 via the transmission belt 505. The main gear disk 504 meshes with the driven gear disk 507 on the second rotating gear shaft 506, driving the second rotating gear shaft 506 to rotate and providing power for the deployment of the fan-shaped guard plate. The rotating gear shaft meshes with the teeth of the fan-shaped guard plate, driving the two fan-shaped guard plates to slide and unfold along both ends of the crossbeam 3, forming a side arc-shaped protective barrier. During the unfolding process, the triangular ratchet plate 603 on the fan-shaped guard plate intermittently pushes against the limiting block 702, causing it to compress the return spring 701 to avoid it. After the fan-shaped guard plate is in place, the second motor 704 pushes the limiting block 702 to engage and fix it with the triangular ratchet plate 603. The limiting plate 703 on the support frame 2 restricts the lateral displacement of the limiting block 702, ensuring that the fan-shaped guard plate is stable. If an external object impacts the equipment, the semi-circular buffer plate 808 at the front first cushions the impact through its own deformation, and then transmits the force to the load-bearing horizontal plate 807. The load-bearing horizontal plate 807 compresses the second buffer spring 809 to further absorb energy. At the same time, the force is transmitted to the movable plate 805 through the connecting piece 806, which pushes the sliding plate 803 to slide stably in the sliding groove 802 of the compression box 801, compressing the first buffer spring 804 to absorb energy in conjunction. The two buffer springs can function stably due to their high-strength spring steel material and anti-corrosion treatment. Simultaneously, the guide push rod 901 on the crossbeam 3 moves with the sliding plate 803, driving the strip toothed plate 902 to drive the ring gear 903 to rotate, so that the observation plate 904 is aligned with a certain warning color or mark of the warning strip 4. By observing the relative position of the observation plate 904 and the warning strip 4, the personnel on site are alerted to the degree of impact on the equipment.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A collision avoidance and early warning device for railway mobile equipment, characterized in that, Includes an external base (1), anti-collision components, and a warning component; The external base (1) is provided with a crossbeam (3) and an observation port. The observation port is located above the crossbeam (3), and warning strips (4) are provided on both sides of the observation port. The anti-collision assembly includes a sliding plate (803), a first buffer spring (804), a movable plate (805), and a semi-circular buffer plate (808). The sliding plate (803) is slidably mounted on the crossbeam (3), and the sliding plate (803) and the crossbeam (3) are connected by a first buffer spring (804); The two ends of the movable plate (805) are rotatably connected to the sliding plate (803) and the semi-circular buffer plate (808), respectively; The warning component includes a guide push rod (901), a strip toothed plate (902), and a ring gear (903). The guide push rod (901) slides through the crossbeam (3), and its two ends are connected to the semi-circular buffer plate (808) and the strip toothed plate (902) respectively; The ring gear (903) is rotatably mounted on the external base (1) and meshes with the strip toothed plate (902). An observation plate (904) is fixedly connected to the outside of the ring gear (903) and passes through the observation port.

2. The railway mobile equipment collision warning device according to claim 1, characterized in that, The external base (1) is equipped with a detection radar (10).

3. The railway mobile equipment collision warning device according to claim 2, characterized in that, The anti-collision assembly also includes a compression box (801). The extrusion box (801) is set on the crossbeam (3), and a sliding groove (802) is provided inside the extrusion box (801); the sliding plate (803) is slidably connected in the sliding groove (802), and the first buffer spring (804) is fixedly connected between the sliding plate (803) and the sliding groove (802).

4. The railway mobile equipment collision warning device according to claim 3, characterized in that, The anti-collision assembly also includes a load-bearing crossbar (807) and a second buffer spring (809); The load-bearing horizontal plate (807) is fixedly connected to the straight edge of the semi-circular buffer plate (808). A connector (806) is provided on the load-bearing horizontal plate (807), and the connector (806) is rotatably connected to the movable plate (805). The second buffer spring (809) is sleeved on the guide push rod (901), and its two ends abut against the force-bearing horizontal plate (807) and the horizontal beam (3) respectively.

5. The railway mobile equipment collision warning device according to claim 4, characterized in that, It also includes the guard plate assembly and the guard plate drive assembly; The guard plate assembly includes a first sector-shaped guard plate (601) and a second sector-shaped guard plate (602); The first sector-shaped guard plate (601) and the second sector-shaped guard plate (602) are slidably connected to both ends of the crossbeam (3); The first sector-shaped guard plate (601) and the second sector-shaped guard plate (602) are driven to close by the guard plate driving assembly and form a closed structure with the crossbeam (3), enclosing the anti-collision component inside.

6. The railway mobile equipment collision warning device according to claim 5, characterized in that, The inner walls of the first sector-shaped guard plate (601) and the second sector-shaped guard plate (602) are provided with toothed structures; The guard plate drive assembly includes a first motor (501), a first rotating gear shaft (502), a rotating shaft (503), and a second rotating gear shaft (506). The output end of the first motor (501) is fixedly connected to the first rotating gear shaft (502) to drive the first rotating gear shaft (502) to rotate; The gear segment of the first rotating gear shaft (502) meshes with the tooth structure of the first sector guard plate (601); The rotating shaft (503) and the second rotating gear shaft (506) are both rotatably mounted on the external base (1); The rotating shaft (503) is provided with a main gear disk (504), and the rotating shaft (503) and the first rotating gear shaft (502) are connected by a transmission belt (505); The second rotating gear shaft (506) is provided with a driven gear disc (507), which meshes with the main gear disc (504); The gear segment of the second rotating gear shaft (506) meshes with the tooth structure of the second sector guard plate (602).

7. The railway mobile equipment collision warning device according to claim 6, characterized in that, It also includes the guard plate limiting component; The outer walls of the first sector-shaped guard plate (601) and the second sector-shaped guard plate (602) are provided with multiple sets of triangular ratchet plates (603); The guard plate limiting assembly includes a return spring (701), a limiting block (702), and a second motor (704). The two ends of the reset spring (701) are respectively connected to the output ends of the limit block (702) and the second motor (704), and the second motor (704) drives the reset spring (701) and the limit block (702) to extend and retract; The limiting block (702) is adapted to engage with the triangular ratchet plate (603).

8. The railway mobile equipment collision warning device according to claim 7, characterized in that, The guard plate limiting assembly also includes a limiting plate (703) for limiting the lateral movement of the limiting block (702).

9. The railway mobile equipment collision warning device according to claim 8, characterized in that, Two sets of support frames (2) are provided on the external base (1); The crossbeam (3) is set between the two sets of support frames (2); The second motor (704) and the limiting plate (703) are both mounted on the support frame (2).

10. The railway mobile equipment collision warning device according to claim 9, characterized in that, Both the first buffer spring (804) and the second buffer spring (809) are made of high-strength spring steel, and their surfaces are treated with anti-corrosion coating.