Movable safety belt fixing device for steel structure engineering

Abstract

The invention belongs to the technical field of steel structure engineering construction, and particularly relates to a steel structure engineering movable safety belt fixing device which comprises a rail frame, a plurality of sets of rotating seats are evenly and fixedly installed on the outer wall of the rail frame, a torsional spring shaft is fixedly installed between each set of rotating seats, and hanging plates are installed on the outer walls of the torsional spring shafts. Supporting plates are evenly and fixedly installed on the outer wall of the rail frame, each hanging plate is in lap joint with the top of the corresponding supporting plate, and a climbing assembly is arranged on the outer wall of the rail frame. When a worker climbs upwards, the climbing assembly is pulled to move upwards along the rail frame through the safety belt and the hook, the climbing assembly sequentially extrudes the hanging plates to cross, frequent dismounting and mounting of the hook are not needed, the climbing time is greatly saved, the overall construction efficiency is improved, the worker can continuously climb upwards due to the fact that the worker does not need to interrupt the climbing process for re-fixing of the safety belt hook, and the labor intensity is reduced. The operation process is smoother, waiting time caused by operation interruption is shortened, and the project progress can be accelerated.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of steel structure engineering construction, in particular to a mobile safety belt fixing device for steel structure engineering. BACKGROUND

[0002] In the field of steel structure construction of substations, ensuring the personal safety of workers is one of the core elements for the smooth progress of the project. The steel structure of substations has the characteristics of high height, complex structure and variable construction environment. Workers face many potential safety risks when working at high altitudes, such as high-altitude falling and object impact. Once a high-altitude falling accident occurs, it often causes serious personnel casualties and property losses. Therefore, it is crucial to take effective safety protection measures. Safety belts, as an important personal protective equipment to prevent high-altitude falling, are widely used in the construction of steel structures of substations. They can provide effective tension to prevent workers from falling and thus protect their lives when they lose their balance or have an accident by connecting their bodies to a reliable fixed point. Whether a safety belt can truly play its protective role depends largely on the reliability and convenience of its fixing device.

[0003] The existing safety belt fixing device usually sets several hanging rings on the steel structure. This design provides workers with fixed points to a certain extent. However, in the actual high-altitude operation process, this traditional fixing device has obvious shortcomings. When workers perform upward climbing operations on the steel structure, the existing safety belt fixing method requires workers to detach the safety belt hook from the current hanging ring and then re-fix it to another hanging ring at a suitable height every time they climb a certain distance. This operation process is not only tedious but also requires workers to spend extra time and effort. More importantly, there is a significant safety gap during the operation process of workers detaching and re-fixing the hook. If an accident occurs during this period, it is likely to cause a high-altitude falling accident.

[0004] Therefore, the present application provides a mobile safety belt fixing device for steel structure engineering. SUMMARY

[0005] In order to make up for the shortcomings of the prior art and solve at least one technical problem raised in the background art.

[0006] The technical scheme adopted by the application to solve its technical problems is: a mobile safety belt fixing device for steel structure engineering, comprising a rail frame, a plurality of groups of rotating seats are uniformly fixed and installed on the outer wall of the rail frame, a torsional spring shaft is fixed and installed between each group of rotating seats, a hanging plate is installed on the outer wall of the torsional spring shaft, a support plate is uniformly fixed and installed on the outer wall of the rail frame, each hanging plate is respectively lapped on the top of the support plate, and a climbing assembly is arranged on the outer wall of the rail frame.

[0007] Preferably, the climbing assembly includes two slides, which are symmetrically slidably mounted on the inner wall of the rail frame. A support plate is fixedly installed between the two slides, and a hanging ring is fixedly installed on the outer wall of the support plate. A crossbar is provided on the side of the rail frame away from the support plate, and an adjustment assembly is provided between the crossbar and the slide. The crossbar overlaps above one of the hanging plates.

[0008] Preferably, the adjusting assembly includes two connecting seats, which are respectively fixedly installed on the sides of the slide away from each other. Each of the two connecting seats has a connecting block on one side. An adjusting screw is rotatably installed on the inner wall of one connecting block, and a sliding rod is fixedly installed on the inner wall of the other connecting block. The inner wall of one connecting seat is threadedly connected to the outer wall of the adjusting screw, and the inner wall of the other connecting seat is slidably connected to the outer wall of the sliding rod. A knob is fixedly installed at the end of the adjusting screw away from the connecting block. The crossbar is fixedly installed between the two connecting blocks, and a protective assembly is provided above the connecting blocks.

[0009] Preferably, the protective assembly includes two mounting bases, which are respectively fixedly installed on the top of the connecting block. A protective ring is rotatably installed between the inner walls of the two mounting bases, and a flipping assembly is provided on one side of the rail frame.

[0010] Preferably, the flipping assembly includes a vertical plate located on the side of the rail frame away from the receiving plate, and a plurality of protrusions are uniformly fixedly installed on the side of the vertical plate close to the rail frame.

[0011] Preferably, each of the connecting blocks is fixedly installed with a support column on the side that is far apart from each other, and the protective ring overlaps the support column above it, with the protective ring tilted upwards.

[0012] Preferably, an upper connector is fixedly installed between the top of the rail frame and the vertical plate, and a lower connector is fixedly installed between the bottom of the rail frame and the vertical plate. Mounting plates are symmetrically fixedly installed on the lower connector and the outer wall of the vertical plate, and the outer wall of the mounting plate is provided with a plurality of mounting holes.

[0013] Preferably, the rail frame has a groove on the side near the receiving plate, and several hanging rods are evenly fixedly installed on the inner wall of the groove.

[0014] Preferably, each of the mounting plates has a mounting box fixedly installed on one side, and each mounting box has a normally open button fixedly installed on its inner wall. Several indicator lights are evenly fixedly installed on the outer wall of the rail frame, and each indicator light is electrically connected to a normally open button. Each of the support plates has a pressing component on one side.

[0015] Preferably, the pressing component includes a bracket, which is fixedly installed on one side of the support plate. An elastic pressing head is fixedly installed at one end of the bracket, and the elastic pressing head abuts against the normally open button. A rain cover is fixedly installed on the outer wall of the mounting box.

[0016] The beneficial effects of this invention are as follows: 1. The mobile safety belt fixing device for steel structure engineering described in this invention allows workers to move the climbing component along the rail frame by pulling it upwards using the safety belt and hooks as they climb. The climbing component sequentially presses against the hanging plate to pass over it, eliminating the need for frequent disassembly and reassembly of the hooks. This significantly saves climbing time and improves overall construction efficiency. Since there is no need to interrupt the climbing process to re-fix the safety belt hooks, workers can continue to climb upwards, making the work process smoother and reducing waiting time caused by operation interruptions, which helps to speed up the project progress.

[0017] 2. The mobile safety belt fixing device for steel structure engineering described in this invention allows the adjusting component to move the crossbar away from the hanging plate when the worker needs to descend, enabling the climbing component to move smoothly down the rail frame. This process achieves a smooth transition of the safety belt protection function. After the crossbar is moved away and loses its direct limiting protection for the worker's descent, the protective component intervenes in time to provide continuous safety protection for the worker, avoiding safety risks caused by untimely switching of protection functions and ensuring the worker's life safety during the descent process.

[0018] 3. The mobile safety belt fixing device for steel structure engineering described in this invention, when a worker falls during descent, the protective ring falls rapidly and collides with the protrusion, quickly triggering the protection mechanism and providing timely and effective protection for the worker, greatly improving the safety of high-altitude operations. Once the protective ring flips towards the rail frame due to the impact and gets caught on the inside of the hanging plate, it is restricted by the hanging plate and cannot fall further, thus preventing the worker from falling further. This reliable limiting effect builds a solid safety barrier for the worker, minimizing the risk of fall and ensuring the worker's life safety in the event of an accident. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of a partial structure of the rail frame of the present invention; Figure 3 This is the invention Figure 2 Schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic diagram of the crossbar structure of the present invention; Figure 5This is a schematic diagram of the hanging plate structure of the present invention; Figure 6 This is a schematic diagram of the slide block structure of the present invention; Figure 7 This is a partial structural diagram of the vertical plate of the present invention; Figure 8 This is a schematic diagram of the mounting box structure of the present invention.

[0021] In the diagram: 1. Rail frame; 2. Rotating seat; 3. Torsion spring shaft; 4. Hanging plate; 5. Support plate; 6. Slide seat; 7. Receiving plate; 8. Hanging ring; 9. Crossbar; 10. Connecting seat; 11. Connecting block; 12. Adjusting screw; 13. Slide rod; 14. Knob; 15. Mounting seat; 16. Protective ring; 17. Vertical plate; 18. Protrusion; 19. Support column; 20. Upper connector; 21. Lower connector; 22. Mounting plate; 23. Mounting hole; 24. Groove; 25. Hanging rod; 26. Mounting box; 27. Normally open button; 28. Indicator light; 29. ​​Bracket; 30. Elastic pressing head; 31. Rain cover. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 5As shown in the embodiment of the present invention, a mobile safety belt fixing device for steel structure engineering includes a rail frame 1. Several sets of rotating seats 2 are uniformly fixedly installed on the outer wall of the rail frame 1. A torsion spring shaft 3 is fixedly installed between each set of rotating seats 2. Hanging plates 4 are installed on the outer wall of each torsion spring shaft 3. Support plates 5 are uniformly fixedly installed on the outer wall of the rail frame 1. Each hanging plate 4 overlaps the top of the support plate 5. A climbing component is provided on the outer wall of the rail frame 1. During operation, the hook at one end of the safety belt is hung on the climbing component, and the other end of the safety belt is fixed to the worker's body. When the worker climbs upwards, they will be pulled by the safety belt and the hook. The climbing assembly moves upward along the rail frame 1. As it moves upward, it sequentially presses against each hanging plate 4. The hanging plates 4, under the action of the support plate 5, are tilted upward. When pressed by the climbing assembly, the hanging plates 4 rotate upward around the torsion spring shaft 3, allowing the climbing assembly to pass over the hanging plates 4. After the climbing assembly passes over the hanging plates 4, the hanging plates 4 return to their original position under the action of the torsion spring shaft 3. At this point, the hanging plates 4 limit the climbing assembly from below. In traditional safety belt usage, workers need to remove the safety belt hooks and re-secure them to a higher position after climbing a certain distance. Traditional methods are cumbersome and time-consuming. In this device, as workers climb, they use safety belts and hooks to pull the climbing assembly upwards along the rail frame 1. The climbing assembly sequentially presses against the hanging plates 4 to pass over them, eliminating the need for frequent hook removal and installation. This significantly saves climbing time and improves overall construction efficiency. Because the climbing process doesn't require interrupting the process to re-secure the safety belt hooks, workers can continue climbing, resulting in a smoother workflow and reduced waiting time due to interruptions, thus accelerating project progress. In the traditional method, workers are unprotected when removing and installing safety belt hooks, creating a safety gap and increasing the risk of falls. During the worker's ascent, the climbing component is always protected by the hanging plate 4. Even if the worker accidentally loosens or falls, the hanging plate 4 will prevent the climbing component from moving downwards, thus preventing the worker from falling. This provides reliable protection for the worker throughout the process and eliminates the safety gap. The hanging plate 4 has an automatic reset function under the action of the torsion spring shaft 3. When the climbing component passes the hanging plate 4, the hanging plate 4 quickly resets to limit the climbing component, forming a reliable protective barrier. This automated protection mechanism does not require additional manual operation and can respond promptly to changes in the worker's status, ensuring the worker's safety.

[0024] like Figures 2 to 6As shown, the climbing assembly includes two slides 6, which are symmetrically slidably mounted on the inner wall of the rail frame 1. A support plate 7 is fixedly installed between the two slides 6, and a hanging ring 8 is fixedly installed on the outer wall of the support plate 7. A crossbar 9 is provided on the side of the rail frame 1 away from the support plate 7. An adjusting assembly is provided between the crossbar 9 and the slide 6. The crossbar 9 overlaps above one of the hanging plates 4. When the safety belt hook is hung on the hanging ring 8, the safety belt moves the support plate 7 upward through the cooperation of the hook and the hanging ring 8. When the support plate 7 moves upward, it moves the slide 6 upward. When the slide 6 moves upward, it moves the crossbar 9 upward through the adjusting assembly. During the upward movement, the crossbar 9 will squeeze the hanging plate 4, causing the hanging plate 4 to flip. After the crossbar 9 passes the hanging plate 4, the hanging plate 4 will return to its original position under the action of the torsion spring shaft 3. When the worker falls, the climbing assembly will descend with the worker. When the horizontal bar 9 descends, it is restricted by the hanging plate 4 below it. The hanging plate 4 limits the descent of the horizontal bar 9. This design ensures that the horizontal bar 9 is effectively supported and limited every time the worker moves a certain distance during the climbing process, preventing falls caused by accidental loosening or slippage. When a worker falls, the climbing assembly descends with the worker. During the descent, the horizontal bar 9 is restricted by the hanging plate 4 below it. The hanging plate 4 obstructs the horizontal bar 9, preventing it from falling further, thus providing reliable fall protection for the worker and greatly reducing the risk of working at height. Throughout the entire climbing process, the horizontal bar 9 is always within the protection range of the hanging plate 4. Whether the worker is climbing slowly or falling rapidly, the hanging plate 4 can play its role in time, providing real-time protection without any gaps in safety protection, providing comprehensive protection for the worker's life safety.

[0025] like Figures 6 to 7As shown, the adjustment assembly includes two connecting seats 10, which are fixedly installed on opposite sides of the slide block 6. Each connecting seat 10 has a connecting block 11 on one side. An adjusting screw 12 is rotatably mounted on the inner wall of one connecting block 11, and a slide rod 13 is fixedly mounted on the inner wall of the other connecting block 11. The inner wall of one connecting seat 10 is threadedly connected to the outer wall of the adjusting screw 12, and the inner wall of the other connecting seat 10 is slidably connected to the outer wall of the slide rod 13. A knob 14 is fixedly mounted on the end of the adjusting screw 12 away from the connecting block 11. A crossbar 9 is fixedly installed between the two connecting blocks 11. A protective assembly is provided above the connecting blocks 11. When a worker needs to get down, rotating the knob 14 causes the adjusting screw 12 to rotate. The rotation of the adjusting screw 12 pushes the connecting block 11 away from the connecting seat 10. When the device moves, it will cause the crossbar 9 to move along with it until the crossbar 9 is removed from above the hanging plate 4. Since the crossbar 9 moves from above the hanging plate 4, the hanging plate 4 can no longer limit the crossbar 9, so that the climbing component can move down along the rail frame 1, allowing the worker to move down smoothly. After the crossbar 9 is removed from the hanging plate 4, the crossbar 9 no longer has the function of protecting the worker. At this time, the protective component will protect the worker. In summary, when the worker needs to descend, the adjusting component can remove the crossbar 9 from above the hanging plate 4, so that the climbing component can move down smoothly along the rail frame 1. This process realizes a smooth transition of the safety belt protection function. After the crossbar 9 is removed and loses its direct limit protection for the worker's descent, the protective component intervenes in time to provide continuous safety protection for the worker, avoiding the safety risks caused by the untimely switching of the protection function, and ensuring the worker's life safety during the descent.

[0026] like Figures 6 to 7 As shown, the protective assembly includes two mounting bases 15, which are fixedly mounted on the top of the connecting block 11. A protective ring 16 is rotatably mounted between the inner walls of the two mounting bases 15. A flipping assembly is provided on one side of the rail frame 1. The protective ring 16 is connected to the connecting block 11 through the mounting base 15 and can rotate around the mounting base 15. When the connecting block 11 moves away from the connecting base 11, the protective ring 16 moves with the connecting block 11 through the mounting base 15. After moving, the protective ring 16 rests on the surface of the flipping assembly. When the climbing assembly moves down... The protective ring 16 will slide down the surface of the tilting component. When a worker falls, the climbing component will fall rapidly, and the protective ring 16 will descend rapidly as well. Due to the rapid descent of the protective ring 16, it will collide with the tilting component, causing the protective ring 16 to rotate towards the rail frame 1. After the protective ring 16 rotates to one side of the rail frame 1, as it continues to fall, the protective ring 16 will be hooked on the hanging plate 4. The hanging plate 4 will limit the protective ring 16, preventing it from falling further, thus preventing the climbing component from falling and protecting the worker.

[0027] like Figure 7 As shown, the flipping assembly includes a vertical plate 17, located on the side of the rail frame 1 away from the receiving plate 7. Several protrusions 18 are evenly fixedly installed on the side of the vertical plate 17 closest to the rail frame 1. When the connecting block 11 moves away from the connecting seat 10, the protective ring 16 will rest on the surface of the vertical plate 17 in an upward tilted state. During normal downward movement of the worker, the protective ring 16 will slowly descend. When the protective ring 16 passes the protrusions 18, due to the slow descent speed, the protective ring 16 will rotate, pass over the protrusions 18, and then reset. When the worker falls, the protective ring 16 will fall rapidly with the worker. Due to the high descent speed, the protective ring 16 will collide with the protrusions 18. After being impacted, the protective ring 16 will flip towards the rail frame 1, thus hooking onto the inner side of the hanging plate 4. At this time, due to the restriction of the hanging plate 4, the protective ring 16 cannot fall further, thereby preventing the worker from falling. The rotating component cleverly utilizes the interaction between the protrusion 18 and the protective ring 16 to accurately distinguish between normal worker descent and accidental fall. During normal descent, the protective ring 16, due to its slower descent speed, can smoothly rotate past the protrusion 18 and return to its original position without obstructing normal operations, ensuring the smooth progress of the construction process. However, when a worker falls, the protective ring 16 falls rapidly and collides with the protrusion 18, quickly triggering the protection mechanism to provide timely and effective protection for the worker, greatly improving the safety of high-altitude operations. Once the protective ring 16 flips towards the rail frame 1 due to the impact and hangs inside the hanging plate 4, it is restricted by the hanging plate 4 and cannot continue to fall, thus preventing the worker from falling further. This reliable limiting effect builds a solid safety barrier for the worker, minimizing the risk of fall and ensuring the worker's life safety in the event of an accident.

[0028] like Figure 6 As shown, support columns 19 are fixedly installed on the opposite sides of the connecting blocks 11. The protective ring 16 overlaps the support column 19 and is tilted upwards. The support column 19 limits the position of the protective ring 16, preventing it from rotating to an inappropriate position such as downwards. This keeps the protective ring 16 tilted upwards in its natural state. On the one hand, workers can easily operate and adjust the protective ring 16 without having to spend extra time and effort to adjust its position and angle. On the other hand, it prevents the protective ring 16 from facing downwards and failing to provide protection after the crossbar 9 is removed from the hanging plate 4, greatly improving the reliability of safety protection.

[0029] like Figure 1 and Figure 7As shown, an upper connector 20 is fixedly installed between the top of the rail frame 1 and the vertical plate 17, and a lower connector 21 is fixedly installed between the bottom of the rail frame 1 and the vertical plate 17. Mounting plates 22 are symmetrically fixedly installed on both the lower connector 21 and the outer wall of the vertical plate 17. Several mounting holes 23 are opened on the outer wall of the mounting plates 22. The vertical plate 17 and the lower connector 21 are fixed to the external connection structure through the mounting plates 22 to realize the installation of the device. The rail frame 1 and the vertical plate 17 are connected by the upper connector 20 and the lower connector 21. This double connection method creates a stable frame structure for the rail frame 1 and the vertical plate 17.

[0030] like Figure 2 As shown, a groove 24 is provided on the side of the rail frame 1 near the receiving plate 7. Several hanging rods 25 are evenly fixedly installed on the inner wall of the groove 24. Multiple hanging rods 25 are set on the inner side of the groove 24. When the climbing component fails to move, the worker can use the traditional method to hang the hook at one end of the safety belt on the hanging rod 25 to protect himself, providing the worker with a critical backup protection method.

[0031] like Figure 8As shown, mounting boxes 26 are fixedly installed on one side of the mounting plate 4, and normally open buttons 27 are fixedly installed on the inner wall of each mounting box 26. Several indicator lights 28 are evenly fixedly installed on the outer wall of the rail frame 1. Each indicator light 28 is electrically connected to a normally open button 27. A pressing component is provided on one side of each support plate 5. The normally open button 27 is fixed to one side of the mounting plate 4 via the mounting box 26. In the initial state, the normally open button 27 is in contact with the pressing component and is in a pressed state. At this time, the indicator lights 28 are not lit. When workers are climbing, the climbing assembly presses against the mounting plate 4, causing it to rotate. This rotation of the mounting plate 4, via the mounting box 26, drives the normally open button 27 to rotate. As it rotates, the normally open button 27 separates from the pressing assembly, releasing the pressure on the button. The corresponding indicator light 28 then illuminates. Therefore, as workers climb, the indicator light 28 illuminates sequentially according to their climbing height. At the construction site, ground personnel can monitor the worker's climbing progress in real time by observing the illumination of the indicator lights 28. This helps ground personnel to rationally allocate work tasks and resources, and provide necessary support and assistance to workers in a timely manner. For example, when a worker climbs to a certain height and needs to pass tools or materials, ground personnel can accurately determine the worker's position based on the illumination of indicator light 28, thereby improving work efficiency. By recording and analyzing the time and sequence of indicator light 28 illumination, data such as the worker's climbing speed and work rhythm can be obtained. This data is of great reference value for evaluating worker work efficiency, formulating reasonable work plans, and optimizing the design and use of the device. The torsion spring shaft 3 enables the hanging plate 4 to reset when not being squeezed. If the torsion spring shaft 3 malfunctions, the hanging plate 4 may not be able to reset normally, affecting subsequent use and safety. If indicator light 28 remains constantly lit, it can indirectly confirm that the hanging plate 4 failed to reset normally after being squeezed, thus requiring timely repair to prevent subsequent safety accidents. In case of an emergency, workers at a high position can turn the hanging plate 4 to illuminate the corresponding indicator light 28, making it easier for ground personnel to find the worker's position and carry out rescue operations in a timely manner.

[0032] like Figure 5 and Figure 8 As shown, the pressing assembly includes a bracket 29, which is fixedly installed on one side of the support plate 5. An elastic pressing head 30 is fixedly installed at one end of the bracket 29. The elastic pressing head 30 abuts against the normally open button 27. Rain covers 31 are fixedly installed on the outer wall of the mounting box 26. The elastic pressing head 30 is fixed to one side of the support plate 5 through the bracket 29. In the natural state, the normally open button 27 is pressed by the elastic pressing head 30 in conjunction with the torsion spring shaft 3, so that the indicator light 28 is not lit. The elastic pressing head 30 can reduce the impact force on the normally open button 27 when it is reset by its own elasticity, thereby extending the service life of the normally open button 27. The rain cover 31 protects the normally open button 27 and prevents it from being damaged.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile safety belt fixing device for steel structure engineering, comprising a rail frame (1), characterized in that: The outer wall of the rail frame (1) is uniformly fixed with several sets of rotating seats (2), and a torsion spring shaft (3) is fixedly installed between each set of rotating seats (2). The outer wall of the torsion spring shaft (3) is equipped with a hanging plate (4). The outer wall of the rail frame (1) is uniformly fixed with a support plate (5). Each hanging plate (4) is attached to the top of the support plate (5). The outer wall of the rail frame (1) is provided with a climbing component.

2. The mobile safety belt fixing device for steel structure engineering according to claim 1, characterized in that: The climbing assembly includes two slides (6), which are symmetrically slidably installed on the inner wall of the rail frame (1). A support plate (7) is fixedly installed between the two slides (6), and a hanging ring (8) is fixedly installed on the outer wall of the support plate (7). A crossbar (9) is provided on the side of the rail frame (1) away from the support plate (7). An adjustment assembly is provided between the crossbar (9) and the slides (6), and the crossbar (9) overlaps above one of the hanging plates (4).

3. A mobile safety belt fixing device for steel structure engineering according to claim 2, characterized in that: The adjustment assembly includes two connecting seats (10), which are respectively fixedly installed on the side of the slide (6) away from each other. Each of the two connecting seats (10) is provided with a connecting block (11) on one side. An adjusting screw (12) is rotatably installed on the inner wall of one of the connecting blocks (11), and a slide rod (13) is fixedly installed on the inner wall of the other connecting block (11). The inner wall of one of the connecting seats (10) is threadedly connected to the outer wall of the adjusting screw (12), and the inner wall of the other connecting seat (10) is slidably connected to the outer wall of the slide rod (13). A knob (14) is fixedly installed on the end of the adjusting screw (12) away from the connecting block (11). The crossbar (9) is fixedly installed between the two connecting blocks (11), and a protective assembly is provided above the connecting blocks (11).

4. The mobile safety belt fixing device for steel structure engineering according to claim 3, characterized in that: The protective assembly includes two mounting bases (15), which are fixedly installed on the top of the connecting block (11). A protective ring (16) is rotatably installed between the inner walls of the two mounting bases (15), and a flipping assembly is provided on one side of the rail frame (1).

5. A mobile safety belt fixing device for steel structure engineering according to claim 4, characterized in that: The flipping assembly includes a vertical plate (17), which is located on the side of the rail frame (1) away from the receiving plate (7). Several protrusions (18) are evenly fixedly installed on the side of the vertical plate (17) close to the rail frame (1).

6. A mobile safety belt fixing device for steel structure engineering according to claim 4, characterized in that: Each of the connecting blocks (11) is fixedly installed with a support column (19) on the side that is far apart from each other. The protective ring (16) overlaps the support column (19) and is tilted upward.

7. A mobile safety belt fixing device for steel structure engineering according to claim 5, characterized in that: An upper connector (20) is fixedly installed between the top of the rail frame (1) and the vertical plate (17), and a lower connector (21) is fixedly installed between the bottom of the rail frame (1) and the vertical plate (17). Mounting plates (22) are symmetrically fixedly installed on the outer walls of the lower connector (21) and the vertical plate (17). Several mounting holes (23) are opened on the outer walls of the mounting plates (22).

8. A mobile safety belt fixing device for steel structure engineering according to claim 2, characterized in that: The rail frame (1) has a groove (24) on the side near the receiving plate (7), and several hanging rods (25) are evenly fixedly installed on the inner wall of the groove (24).

9. A mobile safety belt fixing device for steel structure engineering according to claim 1, characterized in that: A mounting box (26) is fixedly installed on one side of each of the mounting plates (4). A normally open button (27) is fixedly installed on the inner wall of each mounting box (26). Several indicator lights (28) are evenly fixedly installed on the outer wall of the rail frame (1). The indicator lights (28) are electrically connected to the normally open button (27) respectively. A pressing component is provided on one side of each of the support plates (5).

10. A mobile safety belt fixing device for steel structure engineering according to claim 9, characterized in that: The pressing assembly includes a bracket (29), which is fixedly installed on one side of the support plate (5). An elastic pressing head (30) is fixedly installed at one end of the bracket (29). The elastic pressing head (30) abuts against the normally open button (27). A rain cover (31) is fixedly installed on the outer wall of the mounting box (26).

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