Fire stopping device for welding of traveling crane track

By designing a fire-blocking device with fiberglass fireproof cloth, the problem of unobstructed high-temperature flames during railway track welding was solved, thus improving welding safety.

CN223971088UActive Publication Date: 2026-03-06QINGDAO SPECIAL STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

During welding of existing railway tracks, the high-temperature flames emitted from the welding area lack effective blocking devices, resulting in a high risk of injury to maintenance personnel.

Method used

A fire-blocking device comprising a No. 1 fireproof board and a No. 2 fireproof board was designed. It uses fiberglass fireproof cloth to block high-temperature flames through connecting rods, movable frames, winding mechanisms and buckling systems, and is supported and stabilized by rotating rods and screw systems.

Benefits of technology

It effectively blocks the high-temperature flames during welding, reduces the probability of injury to maintenance personnel, and improves the safety and stability of welding work.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of travelling crane track welding, and discloses a fire blocking device for travelling crane track welding, which comprises a first fireproof plate and a second fireproof plate, the first fireproof plate is arranged on one side of the second fireproof plate, and four corners of the first fireproof plate and four corners of the second fireproof plate are rotatably connected with connecting rods. Movable frames are arranged on the two sides between the first fireproof plate and the second fireproof plate correspondingly, the two sides of the four movable frames are rotationally connected with one ends of the eight connecting rods correspondingly, and sliding rods are fixedly connected to the upper ends of two of the movable frames correspondingly; the outer surfaces of the two sliding rods are slidably connected with the middles of the other two movable frames correspondingly. When the rail welding device is used for welding a rail, the rail welding device can be arranged around a welding part, so that high-temperature flames sprayed during welding can be effectively blocked, the injury probability of maintenance personnel is reduced, and the safety of the welding work is improved.
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Description

Technical Field

[0001] This utility model relates to the field of railway track welding technology, and in particular to a fire-blocking device for railway track welding. Background Technology

[0002] Bridge cranes need to travel on rails, making the welding between rails particularly important. However, when subjected to external impacts or other damage, the rails may break or crack. In this case, a rail welding device is needed to weld and repair the broken parts. During the welding process, the welding area will spray extremely high-temperature flames. Therefore, a fire shield is needed to block the high-temperature flames and prevent burns to maintenance personnel.

[0003] However, in the existing technology, when the railway track is broken and welded, the welded part will spray out extremely high temperature flames. However, there is usually no blocking device around the welded part, and the high temperature flames can easily burn maintenance personnel, which is highly dangerous. A solution is proposed to solve the problems mentioned in the background technology. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a fire-blocking device for welding railway tracks, which aims to improve the problem that when railway tracks are broken and being welded, the welding part will spray out extremely high-temperature flames. However, there is usually no blocking device around the welding part, and the high-temperature flames can easily burn maintenance personnel, which is a high-risk situation.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: It includes a first fireproof board and a second fireproof board. The first fireproof board is disposed on one side of the second fireproof board. Connecting rods are rotatably connected to the four corners of the first fireproof board and the four corners of the second fireproof board. Movable frames are provided on both sides between the first and second fireproof boards. The two sides of the four movable frames are rotatably connected to one end of eight connecting rods, respectively. Sliding rods are fixedly connected to the upper ends of two of the movable frames. The outer surfaces of the two sliding rods are slidably connected to the middle of the other two movable frames. A winding mechanism is fixedly connected to both sides of the first fireproof board. One side of the winding mechanism is wrapped with fiberglass fireproof cloth. One end of each of the two fiberglass fireproof cloths is fixedly connected to a fixing frame. Both sides of the second fireproof board are fixedly connected to a buckle frame. Both sides of the interior of the two fixing frames are slidably connected to buckle rods. Both sides of the interior of the two fixing frames are fixedly connected to springs. The two ends of the two springs are respectively fixedly connected to one end of the four buckle rods. One end of the four buckle rods is respectively engaged with the interior of the two buckle frames. The upper ends of the first fireproof board and the upper ends of the second fireproof board are both fixedly connected to extension plates. The two sides of the lower ends of the first fireproof board and the two sides of the lower ends of the second fireproof board are both fixedly connected to bottom rods.

[0006] As a further description of the above technical solution: When welding the track, the distance between the two fireproof plates can be increased by pulling the No. 1 fireproof plate and the No. 2 fireproof plate respectively. When pulled, the connecting rod will move accordingly, driving the movable frame to move. The two movable frames will slide on the slide rod during movement to make the movement between the four movable frames more stable. Then, by rotating the winding rod inside the winding mechanism, an appropriate amount of fiberglass fireproof cloth is released, and the fixing frame at one end of the fiberglass fireproof cloth is snapped onto the snap-on frame. When snapping, the snap-on rods on both sides are pressed. After being subjected to force, the snap-on rods will move inward into the fixing frame and compress the spring. At this time, the snap-on ends of the other end of the snap-on rod can be gathered together. Then, the end is inserted into the snap-on frame and the snap-on rod is released. The compressed spring will return to its original position and push the snap-on rod out of the fixing frame. At this time, the end of the snap-on rod will separate and snap into the snap-on frame.

[0007] Preferably, one side of the No. 1 fireproof board and one side of the No. 2 fireproof board are both fixedly connected to a mounting bracket, and both mounting brackets are rotatably connected to a lead screw.

[0008] As a further description of the above technical solution: the lead screw can be installed in the mounting bracket, and the slider can be driven to move within the mounting bracket by rotating the lead screw.

[0009] Preferably, both mounting brackets have sliders slidably connected inside, and the middle parts of the two sliders are threadedly connected to the outer surfaces of the two lead screws respectively.

[0010] As a further description of the above technical solution: after the slider moves, it can drive the support rod to move, which is used to adjust the position of the support rod.

[0011] Preferably, one end of each of the two sliders is rotatably connected to a support rod, and one end of each of the two support rods is rotatably connected to a support plate.

[0012] As a further description of the above technical solution: the protruding rod at the bottom of the support plate can be inserted into the ground to support the No. 1 fireproof board and the No. 2 fireproof board.

[0013] Preferably, one side of the No. 1 fireproof board and one side of the No. 2 fireproof board are both fixedly connected to a connecting frame, and one side of each of the two connecting frames is rotatably connected to a rotating rod.

[0014] As a further description of the above technical solution: the rotating rod can be used to connect the screws on both sides, and the connecting frame can be used to install the rotating rod and the clamping rod.

[0015] Preferably, clamping rods are slidably connected to both sides of one side of the two connecting frames, and threaded rods are rotatably connected to both sides of the two connecting frames.

[0016] As a further description of the above technical solution: the clamping rod can clamp and limit the position of the support rod after it is brought together, making the device more convenient to transport and carry.

[0017] Preferably, the outer surfaces of the four threaded rods are threadedly connected to one side of the four clamping rods, and one end of each of the four threaded rods is fixedly connected to a first bevel gear, and the outer surfaces of the two first bevel gears are meshed with second bevel gears.

[0018] As a further description of the above technical solution: when the rotating rod is rotated, the screws at both ends of the rotating rod will rotate accordingly, and the rotating rod will drive the connecting gear to rotate. The rotating connecting gear will drive the second bevel gear to rotate, which in turn will drive the first bevel gear to rotate.

[0019] Preferably, one side of each of the two second bevel gears is fixedly connected to a connecting gear through both sides of the two connecting frames, and both ends of the two rotating rods are fixedly connected to screws, with the outer surfaces of the four screws meshing with the outer surfaces of the four connecting gears respectively.

[0020] As a further description of the above technical solution: when the first bevel gear rotates, the threaded rod fixedly connected to it will rotate, thereby driving the clamping rods to separate from each other and releasing the limit on the support rod.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] 1. In this utility model, when welding the track, the distance between the two fireproof plates can be increased by pulling the No. 1 fireproof plate and the No. 2 fireproof plate respectively. When pulled, the connecting rod will move accordingly, driving the movable frame to move. The two movable frames will slide on the slide rod during movement to make the movement between the four movable frames more stable. Then, by rotating the winding rod inside the winding mechanism, an appropriate amount of fiberglass fireproof cloth is released, and the fixing frame at one end of the fiberglass fireproof cloth is snapped onto the snap-on frame. The snapping is performed by pressing the clips on both sides. The latching rod, when subjected to force, moves inward into the fixed frame and compresses the spring. At this time, the latching end of the other end of the latching rod can be brought together. Then, inserting this end into the latching frame and releasing the latching rod will cause the compressed spring to return to its original position and push the latching rod out of the fixed frame. At this point, the end of the latching rod will separate and latch into the latching frame. This method can be used when welding rails. By placing this device around the welding area, it can effectively block the high-temperature flames sprayed during welding, reduce the probability of injury to maintenance personnel, and improve the safety of welding work.

[0023] 2. In this utility model, when the No. 1 and No. 2 fireproof plates are unfolded and placed around the welding area, in order to further improve the stability of the device, the rotating rod can be rotated, and the screws at both ends of the rotating rod can rotate accordingly. After rotation, the connecting gear will rotate, and the rotating connecting gear will drive the No. 2 bevel gear to rotate, which in turn drives the No. 1 bevel gear to rotate. At this time, the threaded rod fixedly connected to it will rotate, thereby driving the clamping rod to separate from each other and releasing the limit on the support rod. Then, by rotating the lead screw, the slider can be controlled to move inside the mounting frame. While the slider moves, the support rod and support plate are rotated, so that the protrusion at the bottom of the support plate can be inserted into the ground to support the No. 1 and No. 2 fireproof plates. In this way, the No. 1 and No. 2 fireproof plates can be effectively supported when the track is welded, avoiding the No. 1 and No. 2 fireproof plates from tipping over due to the high temperature flames sprayed during use, and further improving the safety of the device during use. Attached Figure Description

[0024] Figure 1 This is a perspective view of a fire-blocking device for welding railway tracks according to the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the No. 1 and No. 2 fireproof plates in a fireproof device for welding railway tracks proposed in this utility model.

[0026] Figure 3 This is a three-dimensional structural cross-sectional view of the fixing frame and buckle frame of a fireproof device for welding railway tracks proposed in this utility model;

[0027] Figure 4 This is a three-dimensional structural cross-sectional view of the mounting frame portion in a fire-blocking device for welding railway tracks proposed in this utility model;

[0028] Figure 5 This is a three-dimensional structural cross-sectional view of the connecting frame portion in a fire-blocking device for welding railway tracks proposed in this utility model.

[0029] Legend:

[0030] 1. Fireproof board No. 1; 2. Fiberglass fireproof cloth; 3. Winding mechanism; 4. Extension plate; 5. Rotating rod; 6. Fireproof board No. 2; 7. Mounting frame; 8. Base rod; 9. Support rod; 10. Connecting frame; 11. Connecting rod; 12. Movable frame; 13. Slide rod; 14. Buckle frame; 15. Buckle rod; 16. Fixing frame; 17. Spring; 18. Lead screw; 19. Slider; 20. Support plate; 22. Clamping rod; 23. Threaded rod; 24. Bevel gear No. 1; 25. Bevel gear No. 2; 26. Screw; 27. Connecting gear. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1 to 3 As shown, one embodiment of this utility model includes a first fireproof board 1 and a second fireproof board 6. The first fireproof board 1 is disposed on one side of the second fireproof board 6. Connecting rods 11 are rotatably connected to the four corners of the first fireproof board 1 and the four corners of the second fireproof board 6. Movable frames 12 are provided on both sides between the first fireproof board 1 and the second fireproof board 6. The two sides of the four movable frames 12 are rotatably connected to one end of eight connecting rods 11, respectively. Sliding rods 13 are fixedly connected to the upper ends of two movable frames 12. The outer surfaces of the two sliding rods 13 are slidably connected to the middle of the other two movable frames 12, respectively. Rewinding mechanisms 3 are fixedly connected to both sides of the first fireproof board 1. Both sides are wrapped with fiberglass fireproof cloth 2. One end of each of the two fiberglass fireproof cloths 2 is fixedly connected to a fixing frame 16. Both sides of the second fireproof board 6 are fixedly connected to a buckle frame 14. Both sides of the inside of the two fixing frames 16 are slidably connected to buckle rods 15. Both sides of the inside of the two fixing frames 16 are fixedly connected to springs 17. The two ends of the two springs 17 are respectively fixedly connected to one end of the four buckle rods 15. One end of the four buckle rods 15 is respectively engaged with the inside of the two buckle frames 14. The upper end of the first fireproof board 1 and the upper end of the second fireproof board 6 are both fixedly connected to an extension plate 4. Both sides of the lower end of the first fireproof board 1 and the lower end of the second fireproof board 6 are both fixedly connected to a bottom rod 8.

[0033] In this embodiment, the winding mechanism 3 consists of a rotatable winding rod and a housing. The fiberglass fireproof cloth 2 can be wound and wound around the winding rod. When welding the track, the distance between the two fireproof plates can be increased by pulling the first fireproof plate 1 and the second fireproof plate 6 respectively. When pulled, the connecting rod 11 will move accordingly, driving the movable frame 12 to move. The two movable frames 12 will slide on the sliding rod 13 during movement to make the movement between the four movable frames 12 more stable. Then, by rotating the winding rod inside the winding mechanism 3, an appropriate amount of fiberglass fireproof cloth 2 is released, and the fixing frame 16 at one end of the fiberglass fireproof cloth 2 is fastened to the fastening frame 14. When engaging the locking mechanism, pressing the locking rods 15 on both sides causes the locking rods 15 to move inward into the fixing frame 16 under pressure, compressing the spring 17. At this time, the locking ends of the locking rods 15 can be brought together. Then, inserting the ends into the locking frame 14 and releasing the locking rods 15 will cause the compressed spring 17 to return to its original position and push the locking rods 15 out of the fixing frame 16. The ends of the locking rods 15 will then separate and engage in the locking frame 14. This method can be used to effectively block the high-temperature flames sprayed during welding when welding rails, reducing the probability of injury to maintenance personnel and improving the safety of welding work.

[0034] Example 2, as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, mounting brackets 7 are fixedly connected to one side of fireproof board 1 and one side of fireproof board 6. Screws 18 are rotatably connected inside both mounting brackets 7, and sliders 19 are slidably connected inside both mounting brackets 7. The middle parts of the two sliders 19 are threaded to the outer surfaces of the two screws 18, respectively. Support rods 9 are rotatably connected to one end of each slider 19, and support plates 20 are rotatably connected to one end of each support rod 9. Connecting brackets 10 are fixedly connected to one side of fireproof board 1 and one side of fireproof board 6. Rotating rods 5 are rotatably connected to one side of each connecting bracket 10. Clamping rods 22 are slidably connected to both sides of the two connecting frames 10. Threaded rods 23 are rotatably connected to both sides of the two connecting frames 10. The outer surfaces of the four threaded rods 23 are threaded to one side of the four clamping rods 22 respectively. A first bevel gear 24 is fixedly connected to one end of each of the four threaded rods 23. A second bevel gear 25 is meshed with the outer surfaces of the two first bevel gears 24 respectively. Connecting gears 27 are fixedly connected to one side of each of the two second bevel gears 25 through both sides of the two connecting frames 10 respectively. Screws 26 are fixedly connected to both ends of the two rotating rods 5. The outer surfaces of the four screws 26 are meshed with the outer surfaces of the four connecting gears 27 respectively.

[0035] In this embodiment, when fireproof plate 1 and fireproof plate 6 are unfolded and placed around the welding area, to further improve the stability of the device, the rotating rod 5 can be rotated. The screws 26 at both ends of the rotating rod 5 will then rotate, driving the connecting gear 27 to rotate. The rotating connecting gear 27 will then drive the second bevel gear 25 to rotate, which in turn drives the first bevel gear 24 to rotate. At this time, the threaded rod 23, which is fixedly connected to it, will rotate, thereby driving the clamping rods 22 to separate and releasing the support rod 9 from its limit. Then, the device can be further... Rotating the lead screw 18 controls the movement of the slider 19 inside the mounting frame 7. Simultaneously, the support rod 9 and support plate 20 are rotated, allowing the protruding rod at the bottom of the support plate 20 to be inserted into the ground to support the first fireproof plate 1 and the second fireproof plate 6. This method effectively supports the first fireproof plate 1 and the second fireproof plate 6 during track welding, preventing them from tipping over due to the high-temperature flames emitted during use, thus further improving the safety of the device during operation.

[0036] Working principle: The winding mechanism 3 consists of a rotatable winding rod and a housing. The fiberglass fireproof cloth 2 can be wound and wound onto the winding rod. During the welding of the track, the distance between the first fireproof plate 1 and the second fireproof plate 6 can be increased by pulling them respectively. When pulled, the connecting rod 11 moves accordingly, driving the movable frame 12 to move. The two movable frames 12 slide on the sliding rod 13 during movement to stabilize the movement between the four movable frames 12. Then, by rotating the winding rod inside the winding mechanism 3, an appropriate amount of fiberglass fireproof cloth 2 is released, thus... The fixing bracket 16 at one end of the fiberglass fireproof cloth 2 is fastened to the fastening bracket 14. The fastening is achieved by pressing the fastening rods 15 on both sides. Under pressure, the fastening rods 15 move inwards towards the fixing bracket 16, compressing the spring 17. At this point, the fastening ends of the other ends of the fastening rods 15 converge. Then, these ends are inserted into the fastening bracket 14, and the fastening rods 15 are released. The compressed spring 17 returns to its original position, pushing the fastening rods 15 out of the fixing bracket 16. The ends of the fastening rods 15 then separate and engage in the fastening bracket 14. This method allows for easy fastening during track welding operations. When placed around the welding area, the high-temperature flames emitted during welding can be effectively blocked, reducing the probability of injury to maintenance personnel and improving the safety of welding work. To further enhance the stability of the device, when the No. 1 fireproof plate 1 and No. 2 fireproof plate 6 are unfolded and placed around the welding area, the rotating rod 5 can be rotated. The screws 26 at both ends of the rotating rod 5 will then rotate, driving the connecting gear 27 to rotate. The rotating connecting gear 27 will then drive the No. 2 bevel gear 25 to rotate, which in turn drives the No. 1 bevel gear 24 to rotate. At this time, the threaded rod 23 fixedly connected to it will rotate, thereby driving the clamping mechanism. The rods 22 separate, releasing the limit on the support rod 9. Then, by rotating the lead screw 18, the slider 19 can be controlled to move inside the mounting frame 7. While the slider 19 moves, the support rod 9 and the support plate 20 are rotated, so that the protruding rod at the bottom of the support plate 20 can be inserted into the ground to support the first fireproof plate 1 and the second fireproof plate 6. In this way, the first fireproof plate 1 and the second fireproof plate 6 can be effectively supported when the rail is being welded, preventing the first fireproof plate 1 and the second fireproof plate 6 from tipping over due to the high temperature flames emitted during use, and further improving the safety of the device during use.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fire blocking device for welding of a running rail, comprising a first fire blocking plate (1) and a second fire blocking plate (6), characterized in that: The side of the first fireproof plate (1) and the side of the second fireproof plate (6) are fixedly connected with the mounting frame (7).

2. A fire barrier for welding of a transit rail according to claim 1, characterized in that: The interiors of the two mounting frames (7) are slidably connected with the sliding block (19).

3. A fire barrier for welding of a transit rail according to claim 2, characterized in that: The outer surfaces of the two sliding blocks (19) are respectively threadedly connected with the outer surfaces of the two lead screws (18).

4. A fire barrier for welding of a transit rail according to claim 3, characterized in that: The outer surfaces of the two sliding blocks (19) are respectively threadedly connected with the outer surfaces of the two lead screws (18).

5. A fire barrier for welding of transit rail according to claim 1, characterized in that: The outer surfaces of the two sliding blocks (19) are respectively threadedly connected with the outer surfaces of the two lead screws (18).

6. A fire barrier for welding of a transit rail according to claim 5, characterized in that: The outer surfaces of the two sliding blocks (19) are respectively threadedly connected with the outer surfaces of the two lead screws (18).

7. A fire barrier for welding of a transit rail according to claim 6, characterized in that: The outer surfaces of the two sliding blocks (19) are respectively threadedly connected with the outer surfaces of the two lead screws (18). The outer surfaces of the two sliding blocks (19) are respectively threadedly connected with the outer surfaces of the two lead screws (18). The outer surfaces of the two sliding blocks (19) are respectively threadedly connected with the outer surfaces of the two lead screws (18). The outer surfaces of the two sliding blocks (19) are respectively threadedly connected with the outer surfaces of the two lead screws (18). The outer surfaces of the two sliding blocks (19) are respectively threadedly connected with the outer surfaces of the two lead screws (18). The outer surfaces of the two sliding blocks (19) are respectively threadedly connected with the outer surfaces of the two lead screws (18). 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A fire barrier for welding of a transit rail according to claim 7, characterized in that: One side of two said No. 2 bevel gears (25) is respectively fixedly connected with a connecting gear (27) penetrating two sides of two said connecting frames (10), both ends of two said rotating rods (5) are fixedly connected with a screw rod (26), and the outer surfaces of four said screw rods (26) are respectively engaged with the outer surfaces of four said connecting gears (27).