A movable sunshade rainproof shed suitable for high-speed railway bridge deck system construction

Abstract

The utility model discloses a movable sunshade rainproof shed suitable for high -speed railway bridge bridge floor system construction, including main support frame and fixed mounting on main support frame universal wheel body still including installing on main support frame top connecting structure, install on top connecting structure sunshade cloth support frame, fixed mounting on sunshade cloth support frame sunshade cloth body, detachable installation between sunshade cloth support frame and main support frame support subassembly, install on main support frame elevating system. Through setting fixture assembly, its adjustable design, can adapt to the high -speed railway bridge wall of different thickness, collocation elevating system realizes height regulation, can adapt to the wall height of different parts of bridge floor, need not to dismantle and reassemble and adjust position, nimblely cope with the construction scene demand of bridge floor system complex, and can prevent the construction vibration from causing main support frame displacement after clamping, ensure rainproof shed steady fixed, provide safety protection environment for construction personnel and equipment.

Description

Technical Field

[0001] This utility model relates to the field of high-speed rail construction technology, specifically a movable sunshade and rainproof canopy suitable for the construction of high-speed rail bridge deck systems. Background Technology

[0002] In the field of high-speed railway construction, the bridge deck work area often spans tens or even hundreds of meters. Construction workers need to complete key processes such as steel bar binding, formwork installation, and concrete pouring in an open-air environment. However, the bridge deck is in a completely exposed natural environment for a long time. The continuous exposure to the scorching sun will not only significantly increase the risk of heatstroke for construction workers, but also require sunshades and rain shelters to assist workers in construction.

[0003] In existing technologies, traditional sunshade and rain shelters mostly adopt simple support structures. When in use, the bridge deck height is usually over 20 meters, and they are mostly located in open areas. The wind speed on the bridge deck is significantly stronger than at ground level. Traditional sunshade and rain shelters are very easy to be blown down to the ground under strong winds. This may not only damage the equipment or vegetation under the bridge, but also pose a serious safety threat to vehicles and people passing below, creating a major hidden danger of falling objects from height. Secondly, the construction of high-speed railway bridge deck systems often forms a cross-operation scenario with beam erection. Traditional sunshade and rain shelters need to be manually dismantled when the beam vehicles pass, and then rebuilt after the beam vehicles pass. This process not only consumes a lot of manpower and time, but also causes the canopy structure to loosen due to repeated dismantling and reassembly, further aggravating the safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a movable sunshade and rainproof canopy suitable for the construction of high-speed railway bridge deck systems, so as to solve the problems mentioned in the background art: traditional sunshade and rainproof canopies are not reliably fixed and are prone to falling, endangering personnel and equipment under the bridge; secondly, when the beam vehicle passes, traditional sunshade and rainproof canopies need to be manually dismantled and rebuilt after the beam vehicle passes, which increases the consumption of manpower and time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a movable sunshade and rainproof canopy suitable for the construction of high-speed railway bridge deck systems, including a main support frame and a caster body fixedly installed on the main support frame, a top connecting structure installed on the main support frame, a sunshade cloth support frame installed on the top connecting structure, a sunshade cloth body fixedly installed on the sunshade cloth support frame, a support component detachably installed between the sunshade cloth support frame and the main support frame, a lifting component installed on the main support frame, a lifting limit component installed on the lifting component, a clamping component installed on the lifting component, and a clamping limit component installed between the clamping component and the lifting component;

[0006] The clamping limit assembly is used to restrict the position of the clamping assembly. After the clamping assembly clamps the external wall, it restricts the movement of the main support frame. The lifting limit assembly is used to restrict the position of the adjusted lifting assembly.

[0007] In a preferred embodiment of this technical solution, the lifting assembly includes a sliding seat slidably connected to the main support frame and a fixed rod fixedly installed on the sliding seat. The clamp assembly and the clamp limiting assembly are installed on the fixed rod, and the lifting limiting assembly is installed on the sliding seat.

[0008] According to the preferred embodiment of this technical solution, the lifting and limiting assembly includes a threaded rod threadedly connected to the sliding seat and an adjusting knob fixedly installed on the threaded rod. The adjusting knob is used to adjust the rotation of the threaded rod. When the threaded rod rotates, it moves closer to the main support frame to restrict the movement of the sliding seat.

[0009] According to the preferred embodiment of this technical solution, the clamping assembly includes a first clamping plate and a second clamping plate mounted on a fixed rod, rubber pads respectively fixedly mounted on the first clamping plate and the second clamping plate, a first fastening bolt mounted on the first clamping plate and the second clamping plate, and a first nut threadedly connected to the first fastening bolt.

[0010] Based on the preferred embodiment of this technical solution, both the first clamping plate and the second clamping plate are provided with through grooves that are compatible with the first fastening bolt, and the first fastening bolt is installed on the through groove.

[0011] In a preferred embodiment of this technical solution, the clamp limiting assembly includes a second nut and a third nut that are threadedly connected to the fixed rod.

[0012] Based on the preferred embodiment of this technical solution, the top connection structure includes a first fixed seat fixedly installed on the sunshade cloth support frame, a second fixed seat fixedly installed on the main support frame, a second fastening bolt installed between the first fixed seat and the second fixed seat, and a fourth nut threadedly connected to the second fastening bolt, wherein the first fixed seat is rotatably connected to the second fastening bolt.

[0013] According to the preferred embodiment of this technical solution, the support component includes a rotating rod rotatably connected between the sunshade support frame and the main support frame, a third fastening bolt installed on the rotating rod, and a fifth nut threadedly connected to the third fastening bolt.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting up clamping components with an adjustable design, it can be adapted to high-speed railway bridge walls of different thicknesses. Combined with lifting components, it can adjust the height to suit the wall height of different parts of the bridge deck. It can flexibly meet the needs of complex construction scenarios of the bridge deck system without disassembly and reassembly. Moreover, after clamping, it can prevent the main support frame from shifting due to construction vibration, ensuring the rainproof canopy is stable and fixed, and providing a safe protection environment for construction personnel and equipment.

[0016] 2. The rotatable design of its sunshade support frame and sunshade body, combined with the detachable characteristics of the support components, means that when the beam truck passes, there is no need to completely disassemble the rainproof canopy. Simply remove the support components and rotate and fold both of them to quickly free up space for the beam truck to pass. This eliminates the need to spend a lot of time disassembling and assembling the entire equipment, greatly reducing the interference of beam truck passage on the bridge deck construction, ensuring the continuous progress of construction, and avoiding delays in the construction period caused by equipment disassembly and assembly. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of one embodiment of a movable sunshade and rainproof canopy suitable for the construction of high-speed railway bridge deck systems according to the present invention;

[0018] Figure 2 This is a schematic diagram of the lifting assembly and lifting limit assembly of this utility model;

[0019] Figure 3 This is a schematic diagram of the fixture assembly and fixture limiting assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the top connection structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the support component structure of this utility model;

[0022] Figure 6 This is an exploded structural diagram of the rotating rod and its connected components of this utility model.

[0023] In the diagram: 1. Main support frame; 4. Caster wheel body; 21. Sunshade support frame; 22. Sunshade body; 24. First clamping plate; 25. Second clamping plate; 26. Rubber pad; 27. First fastening bolt; 28. First nut; 29. ​​Second nut; 210. Third nut; 211. Sliding seat; 212. Threaded rod; 213. Adjustment knob; 214. Fixing rod; 31. First fixing seat; 32. Second fixing seat; 33. Second fastening bolt; 34. Fourth nut; 35. Rotating rod; 36. Third fastening bolt; 37. Fifth nut. Detailed Implementation

[0024] In today's era of booming high-speed rail construction in China, high-speed rail lines crisscross like giant dragons, traversing mountains and crossing rivers, weaving an efficient and convenient transportation network. As a crucial component of high-speed rail lines, the construction quality and efficiency of high-speed rail bridges directly impact the safety and stability of high-speed rail operations. In the field of high-speed rail construction, the bridge deck work area presents unique construction environments and challenges.

[0025] The working area on the bridge deck of high-speed railway bridges has an astonishing spatial span, often tens or even hundreds of meters. This vast space, on the one hand, provides a solid guarantee for the smooth operation of the high-speed railway line, allowing trains to travel smoothly at extremely high speeds; on the other hand, it also presents enormous challenges for construction workers. Construction workers need to complete a series of crucial and complex procedures on this huge open-air stage, each procedure acting like a key component in a precision machine, playing a decisive role in the overall quality of the bridge.

[0026] Rebar tying is the foundation for building a sturdy bridge framework. Construction workers, like skilled craftsmen, precisely arrange and bind each rebar, ensuring they are tightly connected and form a stable whole. The position of each rebar and the strength of each binding must be meticulous, as this directly affects whether the bridge can withstand the immense pressure generated by passing trains.

[0027] The formwork installation process is akin to building a precise mold for the bridge. Construction workers need to carefully measure and meticulously install the formwork to ensure that its dimensions and shape perfectly match the design requirements. The flatness and verticality of the formwork—every detail—affects the quality of subsequent concrete pouring, which in turn impacts the bridge's appearance and internal structure.

[0028] Concrete pouring is of paramount importance. Construction workers use specialized equipment to evenly inject the carefully mixed concrete into the formwork. During the pouring process, they must constantly monitor the concrete's fluidity and density, using vibrators and other tools to ensure the concrete is free of voids and achieves the desired strength and durability. This series of procedures is interconnected; any problem in any stage could lead to potential quality issues in the bridge and affect the safe operation of the high-speed railway.

[0029] However, the bridge deck was exposed to the elements for extended periods, which presented numerous uncontrollable natural challenges during construction. One of the most severe challenges was the relentless exposure to the scorching sun. In the blazing summer heat, the sun, like a giant fireball, mercilessly baked the earth. Temperatures on the bridge deck often reached 40-50 degrees Celsius, resembling a giant steamer. Construction workers were essentially toiling in a sea of ​​fire.

[0030] Prolonged exposure to the scorching sun not only significantly increases the risk of heatstroke among construction workers but also poses various health risks. Excessive sweating during prolonged exposure to high temperatures leads to rapid loss of water and electrolytes. Without timely replenishment of fluids and electrolytes, symptoms of heatstroke such as dizziness, weakness, and nausea can easily occur, and in severe cases, it can even be life-threatening. Furthermore, the high temperatures also affect the work efficiency and concentration of construction workers. In the sweltering heat, people are prone to irritability and fatigue, making it difficult to concentrate on delicate operations, which undoubtedly increases safety risks and potential quality defects during construction.

[0031] Besides the scorching sun, sudden downpours are another major challenge for bridge construction. When heavy rain pours down, the bridge surface instantly becomes a vast expanse of water. Rainwater not only washes away the cement paste from the freshly poured concrete, affecting its strength and quality, but also makes the reinforcing steel and formwork slippery, increasing the risk of slips and injuries for construction workers. Furthermore, rainfall can cause short circuits in electrical equipment at the construction site, leading to safety accidents and severely impacting the construction progress.

[0032] In response to these challenges posed by the natural environment, a movable sunshade and rainproof canopy suitable for the construction of high-speed railway bridge deck systems has emerged, becoming a key piece of equipment to ensure the smooth progress of construction. This sunshade and rainproof canopy has many unique advantages and important functions.

[0033] In terms of sun shading, it uses high-strength shading materials that effectively block direct sunlight and reduce the temperature of the bridge deck work area. In the hot summer, the sunshade and rain shelter acts like a giant protective umbrella, creating a relatively cool working environment for construction workers. In this comfortable space, workers can focus more intently on their work, improving efficiency and quality. Furthermore, the shading material has good breathability, preventing the air inside the shelter from becoming stuffy and humid, thus ensuring the health of the construction workers.

[0034] In terms of rain protection, the sunshade and rain shelter also perform exceptionally well. It utilizes materials with superior waterproofing properties, capable of withstanding rainfall of varying intensities. When heavy rain strikes, the sunshade and rain shelter acts like a sturdy fortress, keeping rainwater out and ensuring the bridge construction area remains dry. This allows construction workers to continue their work without being disturbed by rain, avoiding construction interruptions and quality issues caused by rainfall.

[0035] 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.

[0036] Please see Figure 1 - Figure 6 This utility model provides an embodiment: a movable sunshade and rainproof canopy suitable for the construction of high-speed railway bridge deck system, including a main support frame 1 and a caster body 4 fixedly installed on the main support frame 1, a top connecting structure installed on the main support frame 1, a sunshade cloth support frame 21 installed on the top connecting structure, a sunshade cloth body 22 fixedly installed on the sunshade cloth support frame 21, a support component detachably installed between the sunshade cloth support frame 21 and the main support frame 1, a lifting component installed on the main support frame 1, a lifting limit component installed on the lifting component, a clamping component installed on the lifting component, and a clamping limit component installed between the clamping component and the lifting component;

[0037] The clamping limit assembly is used to limit the position of the clamping assembly. After the clamping assembly clamps the external wall, it restricts the movement of the main support frame 1. The lifting limit assembly is used to limit the position of the adjusted lifting assembly.

[0038] During assembly, first assemble the top connection structure between the sunshade support frame 21 and the main support frame 1, then assemble the support components between the sunshade support frame 21 and the main support frame 1. After assembly, push the main support frame 1 to the required position. Then, according to the wall to be clamped, adjust the distance between the clamping components. After adjustment, install the clamping components onto the lifting components. Then, according to the height of the wall to be clamped, adjust the lifting limit components to open and adjust the lifting components to the appropriate position. After completion, adjust the lifting limit components to restrict the lifting components. At this time, install the clamping limit components to restrict the clamping components, thus completing the assembly.

[0039] When the beam car passes, the support components are disassembled to release the restriction on the rotation of the sunshade support frame 21. Then, the sunshade support frame 21 is rotated to cause the sunshade body 22 to flip, so as to prevent the sunshade support frame 21 and the sunshade body 22 from blocking the beam car from passing.

[0040] Please see Figure 1 - Figure 2A further solution based on this embodiment is as follows: the lifting assembly includes a sliding seat 211 slidably connected to the main support frame 1 and a fixed rod 214 fixedly installed on the sliding seat 211. The clamp assembly and the clamp limiting assembly are installed on the fixed rod 214, and the lifting limiting assembly is installed on the sliding seat 211. The sliding seat 211 can slide freely along the axial direction of the main support frame 1, driving the fixed rod 214 to rise and fall synchronously, thereby realizing flexible adjustment of the height of the clamp assembly, which can adapt to the wall height of different parts of the high-speed railway bridge (such as low walls and guardrails), and solve the problem of fixed height and poor adaptability of traditional rainproof canopy clamps.

[0041] Please see Figure 1 - Figure 2 A further solution based on this embodiment is as follows: the lifting and limiting assembly includes a threaded rod 212 threadedly connected to the sliding seat 211 and an adjusting knob 213 fixedly installed on the threaded rod 212. The adjusting knob 213 is used to adjust the rotation of the threaded rod 212. When the threaded rod 212 rotates, it moves closer to the main support frame 1 to restrict the movement of the sliding seat 211. The threaded rod 212 can be driven to rotate by manual rotation. The threaded rod 212 and the sliding seat 211 are connected by threads. During the rotation, axial feed can be achieved, gradually approaching the main support frame 1 and finally tightly fitting. The movement of the sliding seat 211 is restricted by the static friction between the threaded rod 212 and the main support frame 1. This threaded transmission limiting method has self-locking properties. Once the threaded rod 212 fits the main support frame 1, it is not easy to loosen even if it is subjected to a certain external force impact, and the limiting stability is strong.

[0042] Please see Figure 1 - Figure 3 A further solution based on this embodiment is as follows: The clamp assembly includes a first clamping plate 24 and a second clamping plate 25 mounted on a fixed rod 214, a rubber pad 26 respectively fixedly mounted on the first clamping plate 24 and the second clamping plate 25, a first fastening bolt 27 mounted on the first clamping plate 24 and the second clamping plate 25, and a first nut 28 threadedly connected to the first fastening bolt 27. The distance between the first clamping plate 24 and the second clamping plate 25 can be adjusted by the cooperation of the first fastening bolt 27 and the first nut 28, which can adapt to high-speed railway bridge walls of different thicknesses and has a wide clamping range, solving the limitation of traditional clamps that can only adapt to walls of a single thickness. The rubber pad 26 has good elasticity and friction, and can closely fit the wall surface during the clamping process. On the one hand, it can increase the friction between the clamping plate and the wall, improve the clamping firmness, and prevent the clamp from slipping during construction vibration. On the other hand, it can avoid hard contact between the clamping plate and the wall, reducing scratch damage to the wall surface, which is especially suitable for the construction requirements of keeping the surface of the high-speed railway bridge wall flat.

[0043] Please see Figure 1 - Figure 3A further solution based on this embodiment is as follows: both the first clamping plate 24 and the second clamping plate 25 are provided with through grooves that are adapted to the first fastening bolt 27. The first fastening bolt 27 is installed on the through groove, and the through groove provides the first fastening bolt 27 with a moving space along the length direction of the clamping plate. When adjusting the distance between the first clamping plate 24 and the second clamping plate 25, the bolt can slide along the through groove, and the relative position adjustment of the two clamping plates can be achieved without frequent disassembly of the bolt.

[0044] Please see Figure 1 - Figure 3 A further solution based on this embodiment is as follows: the clamp limiting assembly includes a second nut 29 and a third nut 210 threadedly connected to the fixed rod 214. The second nut 29 and the third nut 210 are located on the front and rear sides of the clamp assembly, respectively. By tightening the second nut 29 and the third nut 210, the clamp assembly can be clamped and fixed axially, restricting the clamp assembly from moving up and down along the fixed rod 214. This double nut limiting structure has an anti-loosening effect, and can effectively prevent the nuts from loosening even in the continuous vibration environment generated by the construction of high-speed railway bridges, ensuring the stability of the clamp assembly position.

[0045] Please see Figure 1 , Figure 4 A further solution based on this embodiment is as follows: The top connection structure includes a first fixed seat 31 fixedly installed on the sunshade support frame 21, a second fixed seat 32 fixedly installed on the main support frame 1, a second fastening bolt 33 installed between the first fixed seat 31 and the second fixed seat 32, and a fourth nut 34 threadedly connected to the second fastening bolt 33. The first fixed seat 31 is rotatably connected to the second fastening bolt 33 and can rotate freely around the second fastening bolt 33, driving the sunshade support frame 21 to rotate synchronously. When the beam vehicle passes, there is no need to disassemble the entire support frame. Only by rotating the sunshade support frame 21 can the problem of the sunshade support frame 21 blocking the beam vehicle be avoided. The second fastening bolt 33 and the fourth nut 34 cooperate to tighten and fix the sunshade support frame 21 after it is adjusted to the target angle. The clamping force of the bolt and nut fixes the relative position of the first fixed seat 31 and the second fixed seat 32, ensuring that the sunshade support frame 21 will not rotate arbitrarily under the action of wind, and the structure has strong stability.

[0046] Please see Figure 5 - Figure 6A further solution based on this embodiment is as follows: The support component includes a rotating rod 35 rotatably connected between the sunshade support frame 21 and the main support frame 1, a third fastening bolt 36 installed on the rotating rod 35, and a fifth nut 37 threadedly connected to the third fastening bolt 36. The two ends of the rotating rod 35 are respectively connected to the sunshade support frame 21 and the main support frame 1 to support the sunshade support frame 21 and form a stable triangular support structure, which greatly improves the wind resistance of the sunshade support frame 21 and prevents it from bending or breaking due to excessive force in strong winds. The support component adopts a detachable design. The rotating rod 35 can be removed from the sunshade support frame 21 or the main support frame 1 by loosening the fifth nut 37. This does not affect the folding of the sunshade support frame 21 and the transportation of the rain shelter, taking into account both support function and portability, and adapting to the needs of frequent relocation of work sites in high-speed railway bridge construction.

[0047] Working principle: When using this movable sunshade and rainproof canopy, the first step is to assemble it. First, the sunshade cloth support frame 21 and the main support frame 1 are assembled through the top connection structure. That is, the first fixing seat 31 fixed on the sunshade cloth support frame 21 and the second fixing seat 32 fixed on the main support frame 1 are connected by the second fastening bolt 33, and then initially fixed with the fourth nut 34. Then, the two ends of the rotating rod 35 of the support component are connected to the sunshade cloth support frame 21 and the main support frame 1 respectively. Then, the third fastening bolt 36 is installed on the rotating rod 35. By assembling the fifth nut 37 onto the third fastening bolt 36, the rotating rod 35 is fixed, so that the rotating rod 35, the main support frame 1, and the sunshade cloth support frame 21 form a stable triangular support structure. After the overall assembly is completed, the entire rainproof canopy can be moved flexibly along the high-speed railway bridge deck to the required construction point with the help of the universal wheel body 4 at the bottom of the main support frame 1.

[0048] Upon reaching the target location, based on the wall height, release the adjusting knob 213 of the lifting limit assembly, allowing the sliding seat 211 to slide axially along the main support frame 1. This causes the fixed rod 214 fixed on the sliding seat 211 and the clamping assembly mounted on the fixed rod 214 to rise and fall synchronously. When the clamping assembly reaches the clamping height adapted to the wall, rotate the adjusting knob 213 in the opposite direction, driving the threaded rod 212 threadedly connected to the sliding seat 211 to approach and tightly engage with the main support frame 1. The static friction between the threaded rod 212 and the main support frame 1 restricts the movement of the sliding seat 211, thus locking the lifting assembly position. Then, based on the thickness of the bridge wall to be clamped... Adjust the distance between the first clamping plate 24 and the second clamping plate 25, then pass the first fastening bolt 27 through the first clamping plate 24 and the second clamping plate 25, and connect the first nut 28 to the first fastening bolt 27 to restrict the movement of the first clamping plate 24 and the second clamping plate 25, so that the two clamping plates clamp the wall. At the same time, the rubber pads 26 on the clamping plates are tightly attached to the surface of the wall. Then tighten the second nut 29 and the third nut 210 on the fixing rod 214 located on the front and rear sides of the clamping assembly to clamp and fix the clamping assembly from the axial direction, prevent it from sliding along the fixing rod 214, and ensure that the entire rainproof canopy is stably fixed to the wall by the clamping assembly.

[0049] When a beam vehicle needs to pass through the construction area, there is no need to disassemble the entire rain shelter. Simply loosen the fifth nut 37 of the support component, disassemble the rotating rod 35 from the sunshade support frame 21, release the restriction on the rotation of the sunshade support frame 21, and then rotate the sunshade support frame 21 to rotate the sunshade body 22 to a position that does not obstruct the passage of the beam vehicle. After the beam vehicle passes, reinstall the rotating rod 35 back to its original position and tighten the fifth nut 37 to restore the triangular support structure of the support component, and then continue the bridge deck construction operation.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A movable sunshade and rainproof canopy suitable for the construction of high-speed railway bridge deck systems, comprising a main support frame (1) and a caster body (4) fixedly installed on the main support frame (1), characterized in that: It also includes a top connection structure installed on the main support frame (1), a sunshade support frame (21) installed on the top connection structure, a sunshade body (22) fixedly installed on the sunshade support frame (21), a support component detachably installed between the sunshade support frame (21) and the main support frame (1), a lifting component installed on the main support frame (1), a lifting limit component installed on the lifting component, a clamp component installed on the lifting component, and a clamp limit component installed between the clamp component and the lifting component; The clamp limiting component is used to limit the position of the clamp component. After the clamp component clamps the external wall, it restricts the movement of the main support frame (1). The lifting limiting component is used to limit the position of the adjusted lifting component.

2. The movable sunshade and rainproof canopy for the construction of high-speed railway bridge deck systems according to claim 1, characterized in that: The lifting assembly includes a sliding seat (211) slidably connected to the main support frame (1) and a fixed rod (214) fixedly installed on the sliding seat (211). The clamp assembly and the clamp limiting assembly are installed on the fixed rod (214), and the lifting limiting assembly is installed on the sliding seat (211).

3. The movable sunshade and rainproof canopy for the construction of high-speed railway bridge deck systems according to claim 2, characterized in that: The lifting limit assembly includes a threaded rod (212) threaded onto a sliding seat (211) and an adjustment knob (213) fixedly mounted on the threaded rod (212). The adjustment knob (213) is used to adjust the rotation of the threaded rod (212). When the threaded rod (212) rotates, it moves closer to the main support frame (1) to restrict the movement of the sliding seat (211).

4. The movable sunshade and rainproof canopy for the construction of high-speed railway bridge deck systems according to claim 2, characterized in that: The clamp assembly includes a first clamping plate (24) and a second clamping plate (25) mounted on a fixed rod (214), a rubber pad (26) fixedly mounted on the first clamping plate (24) and the second clamping plate (25) respectively, a first fastening bolt (27) mounted on the first clamping plate (24) and the second clamping plate (25) and a first nut (28) threadedly connected to the first fastening bolt (27).

5. The movable sunshade and rainproof canopy for the construction of high-speed railway bridge deck systems according to claim 4, characterized in that: Both the first clamping plate (24) and the second clamping plate (25) have through slots that are compatible with the first fastening bolt (27), and the first fastening bolt (27) is installed on the through slots.

6. The movable sunshade and rainproof canopy for the construction of high-speed railway bridge deck systems according to claim 1, characterized in that: The clamp limiting assembly includes a second nut (29) and a third nut (210) threaded onto a fixed rod (214).

7. The movable sunshade and rainproof canopy for the construction of high-speed railway bridge deck systems according to claim 1, characterized in that: The top connection structure includes a first fixing seat (31) fixedly installed on the sunshade support frame (21), a second fixing seat (32) fixedly installed on the main support frame (1), a second fastening bolt (33) installed between the first fixing seat (31) and the second fixing seat (32), and a fourth nut (34) threadedly connected to the second fastening bolt (33). The first fixing seat (31) is rotatably connected to the second fastening bolt (33).

8. The movable sunshade and rainproof canopy for the construction of high-speed railway bridge deck systems according to claim 1, characterized in that: The support assembly includes a rotating rod (35) rotatably connected between the shade cloth support frame (21) and the main support frame (1), a third fastening bolt (36) mounted on the rotating rod (35), and a fifth nut (37) threaded onto the third fastening bolt (36).

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