Rail-mounted area fireproof glass cover

Abstract

The invention provides a rail-mounted area fireproof glass cover which comprises a plurality of arched steel frames, the arched steel frames are longitudinally distributed at equal intervals, main purlines are welded among the arched steel frames, and a plurality of main purlines are welded among the arched steel frames. And the plurality of groups of main body purlines are linearly distributed along the outer edge of the arched steel frame at equal intervals. The fireproof glass cover can be provided with a high-pressure-resistant buffer structure, and the buffer strength can be adjusted, so that the problems that an existing fireproof glass cover in a rail-mounted area is only synthesized by adopting a composite material of a base plate, the high-pressure-resistant buffer structure is lacked at the connecting position, the high-pressure-resistant buffer strength cannot be adjusted, and the high-pressure-resistant buffer strength is absorbed by the rigidity of the material in the initial buffer stage; high pressure is easily accumulated in the composite material in an accelerated manner, so that the composite material is broken, and the buffering force of the composite material cannot be changed after the composite material is subjected to high pressure.

Description

Technical Field

[0001] The invention relates to the technical field of rail transit, and in particular to a fireproof glass cover for a track area. Background Art

[0002] In the current booming development of modern rail transit, the rail area, as a key area in the rail transit system, covers tracks, power supply facilities, communication lines and many driving support equipment. As the urban rail transit network becomes more and more dense, passenger flow and driving frequency continue to rise, the security challenges faced by the rail area are becoming increasingly complex and diverse, and the rail area fireproof glass cover came into being.

[0003] Traditional rail transit construction focuses on the stability of track structure, optimization of vehicle performance, and improvement of signal system accuracy, but has neglected the key link of fire prevention in the track area to a certain extent. In the early days, ordinary glass or simple protective barriers were mostly used in the track area, and these materials are fragile when facing fire. Once a fire breaks out in the surrounding buildings and facilities along the track, flames and high-temperature smoke can easily invade the track area, interfere with the normal transmission of driving signals, and cause short-circuit failure of communication lines; strong heat radiation may also directly burn track fasteners and power supply equipment, causing track deformation and power supply interruption, instantly paralyzing the entire rail transit line. What's more, the flying fire and high-temperature debris generated by the fire may also break ordinary glass, causing its fragments to scatter, endangering the safety of passing trains and passengers and staff on board, and the subsequent cleaning and repair work is also extremely cumbersome and complicated.

[0004] At the same time, since rail transit often runs through relatively closed or semi-closed spaces such as underground tunnels and elevated bridge sections, air circulation is obstructed, and heat cannot be quickly dissipated when a fire occurs, so the speed of fire spread is beyond imagination. Existing fire prevention methods, such as relying solely on fire sprinkler systems, have extremely limited effects. A large amount of water vapor not only affects the normal operation of electrical equipment, but also cannot prevent the fire from invading key driving parts.

[0005] With the innovation of material science and fire protection technology, fireproof glass covers in track areas have come to the fore. It integrates advanced glass manufacturing technology with fire-retardant technology, utilizes a multi-layer composite structure, and cleverly combines fireproof adhesives, thermal insulation materials, and high-strength glass substrates. On the one hand, this type of glass cover can, with its excellent fire-resistant integrity, stably block flames and smoke for up to several hours when a fire strikes, strictly observe the boundaries of the track area, and buy enough time for firefighting and rescue; on the other hand, through a special insulation mechanism, it effectively reduces the efficiency of heat transfer, protects sensitive equipment inside the track area from high temperatures, and maintains normal signal conduction and stable power supply output. In addition, its stable material structure also gives it the ability to resist a certain impact force, and can cope with unexpected conditions such as train operation vibration and foreign object impact, protecting the safety of the track area in all directions, meeting the stringent requirements for efficient and safe operation of rail transit;

[0006] High pressure will be generated when the train is running and vibrates, or when foreign objects hit it, and the lack of a buffer structure can easily lead to damage;

[0007] In the prior art, the fireproof glass cover in the track area is only synthesized by the composite material of the substrate. The joints lack a high-pressure buffer structure, and the high-pressure buffer strength is not adjustable. The buffer is absorbed by the stiffness of the material in the initial stage, which easily accelerates the accumulation of high pressure inside the composite material and causes breakage. The composite material cannot change its buffer strength after being subjected to high pressure, which reduces the service life and safety of the composite material. Summary of the invention

[0008] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a fireproof glass cover for a track area, which has a high-pressure buffer structure and can adjust the buffer strength, so as to solve the problem that the existing fireproof glass cover for a track area is only synthesized by a composite material of a substrate, and its joints lack a high-pressure buffer structure, and the high-pressure buffer strength is not adjustable. The buffer is absorbed by the stiffness of the material in the initial stage, which easily causes the accelerated accumulation of high pressure inside the composite material, causing fragmentation, and the composite material cannot change its buffer strength after being subjected to high pressure.

[0009] In order to achieve the above-mentioned object, the present invention is realized by the following technical scheme: a track area fireproof glass cover, comprising an arched steel frame, wherein the arched steel frame is provided with a plurality of groups and is distributed at equal distances in the longitudinal direction, wherein the plurality of groups of the arched steel frames are welded with main purlins, wherein the main purlins are provided with a plurality of groups, and the plurality of groups of the main purlins are distributed linearly and in an equal distance along the outer edge of the arched steel frame, wherein a steel-concrete beam is fixedly installed at the bottom center of the arched steel frame, and a fire wall body located at the bottom of each group of the arched steel frames is fixedly installed at the bottom of the steel-concrete beam , a fireproof board connector is fixedly installed between each group of fireproof walls, a composite heat-insulating fireproof glass 1 is fixedly installed between each group of fireproof walls through the fireproof board connector, a number of groups of longitudinal steel columns are fixedly installed on both sides of the bottom of the arched steel frame, a composite heat-insulating fireproof glass 2 is fixedly installed between a number of groups of longitudinal steel columns, a shield door is fixedly installed inside a number of groups of composite heat-insulating fireproof glass 2, a mounting steel box is fixedly installed on the top of each group of main purlins, and a thick fireproof frame located on the top of the mounting steel box is fixedly installed on the top of the main purlins;

[0010] Also included is a composite glass connecting mechanism, which is located on the top of the thick fireproof frame and is used to connect the composite glass;

[0011] An adjustable buffer mechanism is arranged on the top of the mounting steel box and is used to buffer the vibration of the composite glass connection mechanism;

[0012] The adjustable damping mechanism is arranged on both sides of the top of the inner wall of the thick fireproof frame and is used to adjust the damping force to adapt the adjustable buffer mechanism;

[0013] The adjustable power switching mechanism is arranged inside the mounting steel box and is used to drive the adjustable buffer mechanism and the adjustable damping mechanism respectively.

[0014] Furthermore, the composite glass connection mechanism includes a buffer substrate, a limit plate, a limit matching frame, a steel adapter, a fireproof rubber strip, a thick aluminum single plate, fixing bolts, a shock-absorbing rubber sheet 1, a shock-absorbing rubber sheet 2 and a high borosilicate fireproof laminated glass. The limit plates are fixedly mounted on both sides of the bottom of the buffer substrate, the limit matching frame is fixedly mounted on both sides of the top of the installation steel box and slidably cooperates with the limit plates, the bottom of the steel adapter is welded and fixed to the top of the buffer substrate, the fireproof rubber strip is plugged into the top of the steel adapter, the thick aluminum single plate is arranged on the top of the high borosilicate fireproof laminated glass, and the high The borosilicate fireproof laminated glass is arranged on the top of the fireproof rubber strip, and the bottom of the fixing bolt passes through the thick aluminum single plate, the shock-absorbing rubber sheet 1, the fireproof rubber strip and the steel adapter from top to bottom in sequence and extends to the bottom of the buffer substrate, and the bottom of the fixing bolt cooperates with the buffer substrate through a nut to fix the high borosilicate fireproof laminated glass on the buffer substrate, and the fixing bolt is slidably matched with the top of the installation steel box, and the shock-absorbing rubber sheet 2 is fixedly installed on both sides of the bottom of the thick aluminum single plate and is sealed with the top of the high borosilicate fireproof laminated glass, and both sides of the shock-absorbing rubber sheet 1 are sealed with the high borosilicate fireproof laminated glass.

[0015] Furthermore, the adjustable buffer mechanism includes a pressure block, a pressure sensor, a shock-absorbing adjustment plate, an adjustment rod and a shock-absorbing spring, the pressure block is fixedly installed at the bottom of the buffer base plate, the pressure sensors are arranged in four groups and are embedded in a ring-shaped and equidistant manner on the top of the shock-absorbing adjustment plate, the shock-absorbing adjustment plate is fixedly installed with the pressure block through the pressure sensor, the adjustment rod is threadedly connected to the inside of the shock-absorbing adjustment plate, the shock-absorbing spring is sleeved on the surface of the adjustment rod, a retaining ring is fixedly installed at the bottom of the surface of the adjustment rod and at the top of the inner wall of the mounting steel box, the top end of the shock-absorbing spring is fixedly installed with the bottom of the shock-absorbing adjustment plate, and the bottom end of the shock-absorbing spring is fixedly installed with the top of the mounting steel box.

[0016] Furthermore, the adjustable damping mechanism includes a damping cylinder, a connecting frame, a piston rod, a damping force adjusting rod, a piston block, a limiting ring frame, an adjusting ring, a limiting groove and an oil through hole. The tops of the two groups of damping cylinders are respectively fixedly mounted on both sides of the top of the inner wall of the thick fireproof frame, one end of the connecting frame is fixedly mounted on the buffer base plate, and the other end is fixedly mounted on the piston rod. The piston block is slidably mounted inside the damping cylinder, the top of the piston rod is fixedly mounted on the piston block, the interior of the damping cylinder is filled with hydraulic oil, the damping force adjusting rod is rotatably mounted inside the piston rod, and the top end passes through the piston block, the adjusting ring is provided with two groups and is symmetrically mounted on the top and bottom of the piston block, the two groups of adjusting rings are fixedly mounted on the damping force adjusting rod, the limiting ring frame is fixedly mounted on the top and bottom of the piston block and is used to rotationally limit the adjusting ring, eight groups of oil through holes are opened inside the piston block, and eight groups of adjusting holes that penetrate and cooperate with the oil through holes are opened inside the adjusting ring.

[0017] Furthermore, the adjustable power switching mechanism includes a driven rod, a stabilizing frame, a switching assembly, a tensioning force adjusting assembly, a driving assembly, a driven gear, a toothed belt, a large gear, a damping force adjusting gear, a gear limit frame and a large gear limit frame. The driven rod is provided with two groups. The stabilizing frame is fixedly mounted on the top of the rear side of the inner wall of the steel box. The driven rod is rotatably mounted on both sides of the top of the stabilizing frame. The top and bottom of the driven rod are both mounted on the inner wall of the steel box for rotational cooperation. The driven gear is mounted on the surface of the driven rod and is located inside the stabilizing frame through a slidable power coupling in a keyway. The toothed belt is sleeved on the surface of the driven gear and is used for transmission connection with the driving assembly. The driving assembly is arranged at the top center of the stabilizing frame and is used to drive the driven gear, the tensioning force adjusting assembly is arranged on the stabilizing frame and is used to tension the toothed belt, the switching assembly is arranged at the bottom of the stabilizing frame and is used to switch the driving damping force adjusting gear and the large gear, the gear limiting frame is fixedly installed on both sides of the inner wall of the mounting steel box, the large gear limiting frame is fixedly installed on the top of the two groups of gear limiting frames, the large gear is installed on the bottom of the adjusting rod surface through a slidable power coupling in a keyway, the large gear is located inside the large gear limiting frame, the toothed belt is meshed with the driven gear, the large gear is meshed with the connecting frame, and the damping force adjusting gear is meshed with the connecting frame.

[0018] Furthermore, the switching assembly includes coupling teeth, a limit frame, an arc frame and an electric push rod. The coupling teeth are slidably mounted on the surface of the driven rod through a keyway power coupling and are located inside the limit frame. The limit frame is slidably mounted on the surface of the driven rod. The electric push rod is fixedly mounted on the rear side of the bottom of the stabilizing frame. The output end of the electric push rod is fixedly mounted on the arc frame, and the two ends of the arc frame are fixedly mounted on the two groups of limit frames.

[0019] Furthermore, the driving assembly includes a motor, a driving gear and a driving rod. The motor is fixedly mounted on the rear side of the top of the stabilizing frame. The output end of the motor is fixedly mounted with a driving rod. The bottom of the driving rod passes through the stabilizing frame and extends to the bottom of the inner wall of the mounting steel box to rotate with the mounting steel box. The driving gear is mounted on the driving rod through a slidable power coupling via a keyway and is located at the inner center of the stabilizing frame. The driving gear is meshed with a toothed belt, and the driving gear is connected to the two sets of driven gears through a toothed belt.

[0020] Furthermore, the tension adjustment assembly includes a mounting plate, an adjusting bolt, a trapezoidal slider and a baffle rod, wherein the mounting plate is fixedly mounted on the front side of the top of the stabilizing frame, the adjusting bolt is axially rotatably mounted through the mounting plate, the trapezoidal slider is threadedly connected to the surface of the adjusting bolt, the trapezoidal slider is slidably matched with the bottom of the stabilizing frame, and the baffle rod is fixedly mounted on the bottom of the trapezoidal slider and is used in conjunction with the toothed belt.

[0021] Beneficial effects of the present invention: The present invention switches between the adjustable buffer mechanism and the adjustable damping mechanism by adjusting the power switching mechanism, and then the adjustable buffer mechanism can ensure that the initial absorption and buffering force can match the vibration at the composite glass connection mechanism. At the same time, the corresponding damping force can be adapted in real time through the adjustable damping mechanism, avoiding the composite glass directly absorbing all impact forces with its own rigidity, thereby improving the safety of use and the service life of the composite glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0026] Figure 4 This is a schematic diagram of the main cross-sectional structure of the installation steel box of the present invention;

[0027] Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0028] Figure 6 For the present invention Figure 4 Schematic diagram of the three-dimensional structure;

[0029] Figure 7It is a schematic diagram of the partial cross-section structure of the damping cylinder of the present invention;

[0030] Figure 8 It is a schematic diagram of the exploded three-dimensional structure of the piston block of the present invention;

[0031] Fig. 9 It is a partial three-dimensional structural schematic diagram of the stabilizing frame of the present invention;

[0032] Fig.10 For the present invention Fig. 9 Schematic diagram of the explosion three-dimensional structure;

[0033] Fig.11 It is a schematic diagram of the arched steel frame structure of the present invention.

[0034] In the figure: 1. Arched steel frame; 2. Main purlin; 3. Steel concrete beam; 4. Composite heat-insulating fireproof glass 1; 41. Fireproof board connector; 5. Longitudinal steel column; 51. Shielding door; 52. Composite heat-insulating fireproof glass 2; 6. Foundation pit; 7. Fire wall; 8. Install steel box; 9. Buffer base plate; 9001. Limit plate; 9002. Limit matching frame; 91. Steel adapter; 92. Fireproof rubber strip; 93. Thick aluminum veneer; 94. Fixing bolt; 95. Shock-absorbing rubber 1; 96. Shock-absorbing rubber 2; 97. High borosilicate fireproof laminated glass; 901. Press block; 902. Pressure sensor; 903. Shock-absorbing adjustment plate; 904. Adjustment rod; 905. Shock-absorbing spring; 9041. Large gear; 1041. Damping force adjustment gear Wheel; 1042, gear limit frame; 1043, large tooth limit frame; 101, damping cylinder; 102, connecting frame; 103, piston rod; 104, damping force adjustment rod; 105, piston block; 106, limit ring frame; 107, adjustment ring; 1071, adjustment hole; 1051, oil through hole; 1031, limit groove; 111, driven rod; 112, coupling tooth; 113, limit frame; 114, arc frame; 115, electric push rod; 116, stable frame; 1161, mounting plate; 1162, adjusting bolt; 1163, trapezoidal slider; 1164, stop rod; 117, motor; 1171, driving gear; 1172, driving rod; 118, driven gear; 119, toothed belt; 12, thick fireproof frame. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] See also Figure 1 , Figure 2 and Figure 3 , Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0037] A railroad area fireproof glass cover comprises an arched steel frame 1, wherein the arched steel frame 1 is provided with a plurality of groups and is distributed at equal distances in the longitudinal direction, wherein the plurality of groups of arched steel frames 1 are welded with main purlins 2, wherein the main purlins 2 are provided with a plurality of groups, and the plurality of groups of main purlins 2 are distributed linearly and equidistantly along the outer edge of the arched steel frame 1, wherein a steel concrete beam 3 is fixedly installed at the bottom center of the arched steel frame 1, and a fire wall body 7 located at the bottom of each group of arched steel frames 1 is fixedly installed at the bottom of the steel concrete beam 3, and a fire wall body 7 located at the bottom of each group of fire walls 7 is fixedly installed between each group of fire walls 7. A composite heat-insulating fireproof glass 1 4 is fixedly installed between each group of fireproof wall bodies 7 through a fireproof board connector 41, a plurality of groups of longitudinal steel columns 5 are fixedly installed on both sides of the bottom of the arched steel frame 1, a composite heat-insulating fireproof glass 2 52 is fixedly installed between the plurality of longitudinal steel columns 5, a shielding door 51 is fixedly installed inside the plurality of groups of composite heat-insulating fireproof glass 2 52, a mounting steel box 8 is fixedly installed on the top of each group of main purlins 2, and a thick fireproof frame 12 located on the top of the mounting steel box 8 is fixedly installed on the top of the main purlins 2.

[0038] See also Figure 2 , Figure 3 and Figure 4 , Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the main cross-sectional structure of the installation steel box of the present invention.

[0039] The composite glass connection mechanism is located at the top of the thick fireproof frame 12 and is used to connect the composite glass; the composite glass connection mechanism includes a buffer substrate 9, a limit plate 9001, a limit matching frame 9002, a steel adapter 91, a fireproof rubber strip 92, a thick aluminum single plate 93, a fixing bolt 94, a shock-absorbing rubber sheet 1 95, a shock-absorbing rubber sheet 2 96 and a high borosilicate fireproof laminated glass 97, the limit plate 9001 is fixedly installed on both sides of the bottom of the buffer substrate 9, the limit matching frame 9002 is fixedly installed on both sides of the top of the installation steel box 8 and slidably cooperates with the limit plate 9001, the bottom of the steel adapter 91 is welded and fixed to the top of the buffer substrate 9, the fireproof rubber strip 92 is plugged into the top of the steel adapter 91, and the thick aluminum single plate 93 is set At the top of the high borosilicate fireproof laminated glass 97, the high borosilicate fireproof laminated glass 97 is arranged on the top of the fireproof rubber strip 92, and the bottom of the fixing bolt 94 passes through the thick aluminum single plate 93, the shock-absorbing rubber 95, the fireproof rubber strip 92 and the steel adapter 91 from top to bottom in sequence and extends to the bottom of the buffer substrate 9, and the bottom of the fixing bolt 94 cooperates with the buffer substrate 9 through a nut to fix the high borosilicate fireproof laminated glass 97 on the buffer substrate 9, the fixing bolt 94 slides with the top of the installation steel box 8, the shock-absorbing rubber 96 is fixedly installed on both sides of the bottom of the thick aluminum single plate 93 and is sealed with the top of the high borosilicate fireproof laminated glass 97, and the two sides of the shock-absorbing rubber 95 are sealed with the high borosilicate fireproof laminated glass 97.

[0040] The high borosilicate fireproof laminated glass 97 can be pressed onto the fireproof rubber strip 92 by fixing bolts 94 in conjunction with the thick aluminum single plate 93 and the shock-absorbing rubber sheet 96. Subsequently, the high borosilicate fireproof laminated glass 97 is fixed by the steel adapter 91 and the buffer substrate 9, and the fireproof rubber strip 92 and the shock-absorbing rubber sheet 96 are sealed and connected. The groove on the fireproof rubber strip 92 can form a shock-absorbing space, so that the high borosilicate fireproof laminated glass 97 has a shock-absorbing effect. The initial part of the high borosilicate fireproof laminated glass 97 under high pressure can be absorbed by the adjustable buffer mechanism through the sliding of the limit plate 9001 and the limit matching frame 9002.

[0041] See also Figure 4 , Figure 4 It is a schematic diagram of the main cross-sectional structure of the installation steel box of the present invention.

[0042] The adjustable buffer mechanism is arranged on the top of the mounting steel box 8 and is used to buffer the vibration of the composite glass connecting mechanism; the adjustable buffer mechanism includes a pressure block 901, a pressure sensor 902, a shock-absorbing adjustment plate 903, an adjustment rod 904 and a shock-absorbing spring 905, the pressure block 901 is fixedly mounted on the bottom of the buffer substrate 9, four groups of pressure sensors 902 are arranged and are embedded in the top of the shock-absorbing adjustment plate 903 in a ring shape and at equal distances, the shock-absorbing adjustment plate 903 is fixedly mounted with the pressure block 901 through the pressure sensor 902, the adjustment rod 904 is threadedly connected to the inside of the shock-absorbing adjustment plate 903, the shock-absorbing spring 905 is sleeved on the surface of the adjustment rod 904, a retaining ring is fixedly installed at the bottom of the surface of the adjustment rod 904 and at the top of the inner wall of the mounting steel box 8, the top end of the shock-absorbing spring 905 is fixedly mounted with the bottom of the shock-absorbing adjustment plate 903, and the bottom end of the shock-absorbing spring 905 is fixedly mounted with the top of the mounting steel box 8.

[0043] The pressure block 901 can transfer the pressure transmitted by the buffer substrate 9 to the shock-absorbing adjustment plate 903, and detect its real-time pressure data through the pressure sensor 902, and compare the data through the external controller to detect whether its pressure data is in the threshold range where the buffer strength needs to be adjusted. If not, the pressure can be directly transmitted to the shock-absorbing spring 905 through the shock-absorbing adjustment plate 903, and the shock-absorbing spring 905 absorbs it, and then cooperates with the adjustable damping mechanism to avoid repeated vibration, so that the high borosilicate fireproof laminated glass 97 will not withstand great pressure in a short period of time after being impacted by high pressure. Pressure can be gradually dispersed and buffered. The adjustment rod 904 can adjust the position of the shock-absorbing adjustment plate 903 after rotation, so that the shock-absorbing adjustment plate 903 moves upward or downward. If it moves upward, the initial absorption force of the shock-absorbing spring 905 is reduced, but it is flexible for buffering to prevent the high borosilicate fireproof laminated glass 97 from being unable to withstand the impact force within a certain pressure threshold. At the same time, when the shock-absorbing adjustment plate 903 moves downward, the initial absorption force of the shock-absorbing spring 905 is increased to avoid being too soft in the normal state and to avoid more mechanical wear of the high borosilicate fireproof laminated glass 97 under low pressure. Changing the initial compression amount or the effective number of turns of the spring can adjust the spring stiffness, and then with the damping force adjustment, accelerate the vibration attenuation of the shock-absorbing spring 905.

[0044] See also Figure 6 , Figure 7 and Figure 8 , Figure 6 For the present invention Figure 4 Schematic diagram of the three-dimensional structure; Figure 7 It is a schematic diagram of the partial cross-section structure of the damping cylinder of the present invention; Figure 8 It is a schematic diagram of the exploded three-dimensional structure of the piston block of the present invention.

[0045] The adjustable damping mechanism is arranged on both sides of the top of the inner wall of the thick fireproof frame 12, and is used to adjust the damping force to adapt to the adjustable buffer mechanism; the adjustable damping mechanism includes a damping cylinder 101, a connecting frame 102, a piston rod 103, a damping force adjustment rod 104, a piston block 105, a limiting ring frame 106, an adjustment ring 107, a limiting groove 1031 and an oil through hole 1051. The tops of the two groups of damping cylinders 101 are fixedly installed on both sides of the top of the inner wall of the thick fireproof frame 12, one end of the connecting frame 102 is fixedly installed on the buffer substrate 9, and the other end is fixedly installed on the piston rod 103. The piston block 105 is slidably installed inside the damping cylinder 101, and the piston rod 103 The top is fixedly installed with the piston block 105, the interior of the damping cylinder 101 is filled with hydraulic oil, the damping force adjusting rod 104 is rotatably installed inside the piston rod 103, and the top end passes through the piston block 105, and two groups of adjusting rings 107 are provided and symmetrically installed on the top and bottom of the piston block 105, and the two groups of adjusting rings 107 are fixedly installed with the damping force adjusting rod 104, the limiting ring frame 106 is fixedly installed on the top and bottom of the piston block 105 and is used to limit the rotation of the adjusting ring 107, eight groups of oil through holes 1051 are opened inside the piston block 105, and eight groups of adjusting holes 1071 that penetrate and cooperate with the oil through holes 1051 are opened inside the adjusting ring 107.

[0046] The connecting frame 102 is driven by the buffer substrate 9, and then the piston rod 103 can be driven to reciprocate up and down through the connecting frame 102. When the piston rod 103 drives the piston block 105 to move when the damping cylinder 101 is filled with hydraulic oil, the flow rate of the hydraulic oil determines the damping force. At this time, the adjustment hole 1071 on the adjustment ring 107 is staggered with the oil through hole 1051 to adjust the flow rate, thereby adjusting the damping force. The damping force is controlled by the torsion of the damping force adjustment rod 104. When the shock absorbing spring 905 When the extruded rigidity is increased, the adjusting ring 107 is twisted, so that the staggered gap between the adjusting hole 1071 and the oil through hole 1051 is correspondingly reduced, thereby increasing the damping force, improving the damping efficiency, and matching the current shock-absorbing spring 905. When the shock-absorbing spring 905 is loosened upward by the shock-absorbing adjustment plate 903 and the rigidity is reduced, the adjusting ring 107 can be twisted to increase the staggered gap between the adjusting hole 1071 and the oil through hole 1051, thereby reducing the damping force, and matching the current elastic force of the shock-absorbing spring 905.

[0047] See also Fig. 9 and Fig.10 , Fig. 9 It is a partial three-dimensional structural schematic diagram of the stabilizing frame of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the explosion three-dimensional structure.

[0048] The adjustable power switching mechanism is arranged inside the mounting steel box 8, and is used to drive the adjustable buffer mechanism and the adjustable damping mechanism respectively; the adjustable power switching mechanism includes a driven rod 111, a stabilizing frame 116, a switching assembly, a tensioning force adjusting assembly, a driving assembly, a driven gear 118, a toothed belt 119, a large gear 9041, a damping force adjusting gear 1041, a gear limiting frame 1042 and a large gear limiting frame 1043, the driven rod 111 is provided with two groups, the stabilizing frame 116 is fixedly mounted on the top of the rear side of the inner wall of the mounting steel box 8, the driven rod 111 is rotatably mounted on both sides of the top of the stabilizing frame 116, the top and bottom of the driven rod 111 are both mounted on the inner wall of the steel box 8 for rotational cooperation, the driven gear 118 is mounted on the surface of the driven rod 111 and is located inside the stabilizing frame 116 through a keyway slidable power coupling, and the toothed belt 119 is sleeved on the driven gear 11 8 and is used for transmission connection with the driving assembly, the driving assembly is arranged at the top center of the stabilizing frame 116 and is used to drive the driven gear 118, the tensioning force adjusting assembly is arranged on the stabilizing frame 116 and is used to tension the toothed belt 119, the switching assembly is arranged at the bottom of the stabilizing frame 116 and is used to switch the driving damping force adjusting gear 1041 and the large gear 9041, the gear limiting frame 1042 is fixedly installed on both sides of the inner wall of the mounting steel box 8, the large gear limiting frame 1043 is fixedly installed on the top of the two sets of gear limiting frames 1042, the large gear 9041 is installed on the bottom of the surface of the adjusting rod 904 through a slidable power coupling in a keyway, the large gear 9041 is located inside the large gear limiting frame 1043, the toothed belt 119 is meshed with the driven gear 118, the large gear 9041 is meshed with the connecting frame 102, and the damping force adjusting gear 1041 is meshed with the connecting frame 102.

[0049] The stabilizing frame 116 can limit the rotation of the two groups of driven rods 111. At the same time, after the driving component is started, the two groups of driven gears 118 can be driven to rotate through the toothed belt 119, and then the driven rod 111 can be driven to rotate through the driven gear 118. After the driven rod 111 rotates, the switching component can have transmission force. When the switching component switches up and down to the corresponding meshing position with the large gear 9041 and the damping force adjustment gear 1041, the large gear 9041 and the damping force adjustment gear 1041 can be driven. At the same time, the driving stability of the toothed belt 119 can be guaranteed through the tensioning force adjustment component to avoid loosening of the toothed belt 119 and causing unstable transmission of the driven gear 118.

[0050] See also Fig. 9 and Fig.10 , Fig. 9 It is a partial three-dimensional structural schematic diagram of the stabilizing frame of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the explosion three-dimensional structure.

[0051] The switching assembly includes a coupling tooth 112, a limit frame 113, an arc frame 114 and an electric push rod 115. The coupling tooth 112 is installed on the surface of the driven rod 111 through a slidable power coupling in a keyway and is located inside the limit frame 113. The limit frame 113 is slidably installed on the surface of the driven rod 111. The electric push rod 115 is fixedly installed on the rear side of the bottom of the stabilizing frame 116. The output end of the electric push rod 115 is fixedly installed on the arc frame 114, and the two ends of the arc frame 114 are fixedly installed on the two sets of limit frames 113.

[0052] The electric push rod 115 can drive the arc frame 114 to move up and down through the output end. When the arc frame 114 moves upward, it drives the limit frame 113 to move upward. The limit frame 113 drives the coupling tooth 112 to move upward and mesh with the large gear 9041, thereby driving the adjustment rod 904 to rotate. When the adjustment rod 904 rotates, the shock-absorbing adjustment plate 903 can be moved downward under the reaction force of the retaining ring, so that the shock-absorbing spring 905 is compressed, thereby increasing the initial rigidity of the shock-absorbing spring 905. Reversal causes the shock-absorbing adjustment plate 903 to move upward under the threaded torsion of the adjustment rod 904, reducing the initial rigidity of the shock-absorbing spring 905, thereby facilitating the absorption of vibrations of different intensities.

[0053] See also Fig. 9 and Fig.10 , Fig. 9 It is a partial three-dimensional structural schematic diagram of the stabilizing frame of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the explosion three-dimensional structure.

[0054] The driving assembly includes a motor 117, a driving gear 1171 and a driving rod 1172. The motor 117 is fixedly mounted on the rear side of the top of the stabilizing frame 116. The output end of the motor 117 is fixedly mounted with the driving rod 1172. The bottom of the driving rod 1172 penetrates the stabilizing frame 116 and extends to the bottom of the inner wall of the mounting steel box 8 to rotate with the mounting steel box 8. The driving gear 1171 is mounted on the driving rod 1172 through a slidable power coupling through a keyway and is located at the inner center of the stabilizing frame 116. The driving gear 1171 is meshed with a toothed belt 119. The driving gear 1171 is connected to two sets of driven gears 118 through the toothed belt 119. When the motor 117 is started, the driving rod 1172 is driven to rotate, and then the driving gear 1171 is driven to rotate through the rotation of the driving rod 1172, and the two sets of driven gears 118 are driven to rotate through the meshing of the driving gear 1171 and the toothed belt 119.

[0055] See also Figure 5 and Fig.10 , Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Fig.10 For the present invention Fig. 9 Schematic diagram of the explosion three-dimensional structure.

[0056] The tension adjustment assembly includes a mounting plate 1161, an adjusting bolt 1162, a trapezoidal slider 1163 and a blocking rod 1164. The mounting plate 1161 is fixedly mounted on the front side of the top of the stabilizing frame 116. The adjusting bolt 1162 is axially rotatably mounted through the mounting plate 1161. The trapezoidal slider 1163 is threadedly connected to the surface of the adjusting bolt 1162. The trapezoidal slider 1163 slides in cooperation with the bottom of the stabilizing frame 116. The blocking rod 1164 is fixedly mounted on the bottom of the trapezoidal slider 1163 and is used in cooperation with the toothed belt 119. The torsion adjusting bolt 1162 can, under the rotation limit of the mounting plate 1161 in cooperation with the retaining spring, not move axially. After self-rotation, it drives the trapezoidal slider 1163 threadedly connected thereto to move in the front-rear direction. Subsequently, the blocking rod 1164 is driven by the trapezoidal slider 1163 to extrude and tension the toothed belt 119, thereby ensuring the meshing stability of the toothed belt 119 with the driven gear 118 when the toothed belt 119 rotates.

[0057] See also Figures 1 to 11 , Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 This is a schematic diagram of the main cross-sectional structure of the installation steel box of the present invention; Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Figure 6 For the present invention Figure 4 Schematic diagram of the three-dimensional structure; Figure 7 It is a schematic diagram of the partial cross-section structure of the damping cylinder of the present invention; Figure 8 It is a schematic diagram of the exploded three-dimensional structure of the piston block of the present invention; Fig. 9 It is a partial three-dimensional structural schematic diagram of the stabilizing frame of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the explosion three-dimensional structure; Fig.11 It is a schematic diagram of the arched steel frame structure of the present invention.

[0058] Working principle: In the actual operation of rail transit, when the train vibrates during operation or encounters foreign objects, a high-voltage shock will be instantly generated at the fireproof glass cover in the track area. At this time, the high borosilicate fireproof laminated glass 97 located in the key protection position is the first to bear the brunt of the high-pressure force. Part of the vibration caused by the high pressure is transmitted through the thick aluminum plate 93, and the other part is quickly and accurately transmitted to the buffer substrate 9 through the stable connection structure formed by the fireproof rubber strip 92 and the steel adapter 91;

[0059] The limit plates 9001 on both sides of the bottom of the buffer substrate 9 then work closely with the limit matching frames 9002 on both sides of the top of the installation steel box 8 to play a limit function, ensuring that the buffer substrate 9 can only slide stably in a predetermined direction under high-pressure impact, effectively avoiding structural damage caused by uneven force or uncontrolled displacement, and laying the foundation for subsequent buffering actions. At the same time, the buffer substrate 9 synchronously transmits the impact force to the connecting frame 102 and the pressure block 901, and the pressure block 901 accurately contacts the shock-absorbing adjustment plate 903;

[0060] The four groups of pressure sensors 902 inlaid in a circular shape and at equal distances on the top of the shock-absorbing adjustment plate 903 are activated in real time, sensitively capturing the pressure value at the moment, and immediately transmitting the data to the external controller. The external controller quickly compares and judges the current pressure data based on the preset buffering force threshold range: if the pressure is in the normal range where the buffering force does not need to be adjusted, the shock-absorbing adjustment plate 903 will directly relay the pressure to the shock-absorbing spring 905. The shock-absorbing spring 905, with its excellent elastic deformation characteristics, steadily absorbs and dissipates the impact force, and cooperates with the adjustable damping mechanism to effectively suppress the repeated shocks caused by the impact, prevent the high borosilicate fireproof laminated glass 97 from suffering from excessive pressure accumulation in a short period of time, and achieve the effect of gradually dispersing and buffering high-pressure impacts, effectively ensuring the stability of the glass structure;

[0061] When the external controller determines that the pressure data exceeds the normal threshold and the buffer strength needs to be adjusted urgently, the entire adjustment process is quickly and orderly started. The system first accurately starts the motor 117 on the top and rear side of the stabilizing frame 116. The output end of the motor 117 drives the driving rod 1172 rigidly connected to it to rotate at high speed. The driving rod 1172 drives the driving gear 1171 installed with a slidable power coupling in the keyway to rotate synchronously. The driving gear 1171, relying on the precise meshing relationship with the toothed belt 119, steadily drives the two sets of driven gears 118 to rotate smoothly, transmitting stable power for subsequent key adjustment actions;

[0062] Next, the electric push rod 115 is controlled in a targeted manner according to the actual adjustment object, that is, the rigidity adjustment of the shock absorbing spring 905, or the adaptation change of the damping force of the piston block 105; if the initial rigidity of the shock absorbing spring 905 needs to be strengthened to resist high pressure, the electric push rod 115 is driven upward to push the arc frame 114 to move upward synchronously; the arc frame 114 relies on the stable connection with the limit frame 113 to pull the limit frame 113 to drive the coupling gear 112 to move upward accurately, so that it is closely meshed with the large gear 9041. The large gear 9041 rotates under force, and with the help of the threaded adjustment rod 904 and the reaction force of the retaining ring, the shock absorbing adjustment plate 903 is steadily pushed downward, and the shock absorbing spring 905 is efficiently compressed, and its initial rigidity is raised as desired, so that it can better adapt to the high-pressure impact. On the contrary, when the electric push rod 115 is driven downward, the components are linked in reverse, the damping adjustment plate 903 moves upward, and the initial rigidity of the damping spring 905 is reduced, which is conducive to gently absorbing smaller impact forces and reducing unnecessary mechanical wear of the glass under low pressure conditions;

[0063] When the damping force needs to be precisely adjusted, the electric push rod 115 drives downward, driving the arc frame 114, the limit frame 113 and the coupling gear 112 to work in sequence until the coupling gear 112 is precisely meshed with the damping force adjustment gear 1041. At this moment, the coupling gear 112 drives the damping force adjustment gear 1041 to rotate smoothly, thereby driving the damping force adjustment rod 104 to rotate synchronously; the damping force adjustment rod 104 cleverly twists the adjustment ring 107 by virtue of the rigid connection with the adjustment ring 107. The eight groups of adjustment holes 1071 carefully designed on the adjustment ring 107 and the eight groups of oil through holes 1051 inside the piston block 105 are interlaced with each other. By precisely adjusting the interlaced gap between the two, the flow rate of the hydraulic oil in the damping cylinder 101 is cleverly adjusted to achieve precise adjustment of the damping force as needed. When the rigidity of the shock absorbing spring 905 increases due to high-pressure extrusion, the staggered gap is appropriately reduced, the damping force is increased, and the strong elastic force of the shock absorbing spring 905 is efficiently matched to synergistically suppress vibration; when the rigidity of the shock absorbing spring 905 decreases due to adjustment, the staggered gap is correspondingly increased, and the damping force is appropriately reduced to ensure that it complements the current elastic force of the shock absorbing spring 905 and maintains an exquisite balance between the buffering and damping systems in all directions.

[0064] After the above-mentioned intelligent and precise adjustment process of elastic force and damping force, even if the high borosilicate fire-resistant laminated glass 97 is subjected to high-pressure impact, it can rely on this set of sophisticated and coordinated buffering and damping adjustment mechanisms to adaptively disperse and eliminate the impact force, significantly improve its own safety of use, effectively extend its service life, and build a solid barrier for the stable operation of rail facilities and the safety of personnel.

[0065] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fireproof glass cover for a track area, comprising an arched steel frame (1), characterized in that: The arched steel frame (1) is provided with a plurality of groups and is distributed at equal distances in the longitudinal direction. The plurality of groups of the arched steel frames (1) are welded with main purlins (2) each other. The plurality of groups of the main purlins (2) are provided with a plurality of groups, and the plurality of groups of the main purlins (2) are linearly arranged at equal distances along the outer edge of the arched steel frame (1). A steel concrete beam (3) is fixedly installed at the bottom center of the arched steel frame (1). A fire wall body (7) located at the bottom of each group of the arched steel frames (1) is fixedly installed at the bottom of the steel concrete beam (3). A fireproof board connecting piece (41) is fixedly installed between each group of the fireproof boards (7). Composite heat-insulating fireproof glass 1 (4) is fixedly installed between the fire-proof wall bodies (7) through fireproof board connectors (41); a plurality of groups of longitudinal steel columns (5) are fixedly installed on both sides of the bottom of the arched steel frame (1); composite heat-insulating fireproof glass 2 (52) is fixedly installed between the plurality of groups of longitudinal steel columns (5); shielding doors (51) are fixedly installed inside the plurality of groups of composite heat-insulating fireproof glass 2 (52); a mounting steel box (8) is fixedly installed on the top of each group of main purlins (2); and a thick fireproof frame (12) located on the top of the mounting steel box (8) is fixedly installed on the top of the main purlins (2); It also includes a composite glass connecting mechanism, which is located on the top of the thick fireproof frame (12) and is used to connect the composite glass; An adjustable buffer mechanism is arranged on the top of the mounting steel box (8) and is used to buffer the vibration of the composite glass connection mechanism; An adjustable damping mechanism is arranged on both sides of the top of the inner wall of the thick fireproof frame (12) and is used to adjust the damping force to adapt the adjustable buffer mechanism; The adjustable power switching mechanism is arranged inside the mounting steel box (8) and is used to drive the adjustable buffer mechanism and the adjustable damping mechanism respectively.

2. The fireproof glass cover for track area according to claim 1, characterized in that: The composite glass connection mechanism comprises a buffer substrate (9), a limit plate (9001), a limit matching frame (9002), a steel adapter (91), a fireproof rubber strip (92), a thick aluminum single plate (93), a fixing bolt (94), a shock-absorbing rubber sheet 1 (95), a shock-absorbing rubber sheet 2 (96) and a high borosilicate fireproof laminated glass (97). The limit plate (9001) is fixedly mounted on both sides of the bottom of the buffer substrate (9), the limit matching frame (9002) is fixedly mounted on both sides of the top of the installation steel box (8) and is slidably matched with the limit plate (9001), the bottom of the steel adapter (91) is welded and fixed to the top of the buffer substrate (9), the fireproof rubber strip (92) is plugged into the top of the steel adapter (91), and the thick aluminum single plate (93) is arranged on the top of the high borosilicate fireproof laminated glass (97). The top of the steel box (8) is provided with the high borosilicate fireproof laminated glass (97) on the top of the fireproof rubber strip (92). The bottom of the fixing bolt (94) passes through the thick aluminum plate (93), the shock-absorbing rubber sheet (95), the fireproof rubber strip (92) and the steel adapter (91) from top to bottom in sequence and extends to the bottom of the buffer substrate (9). The bottom of the fixing bolt (94) cooperates with the buffer substrate (9) through a nut to fix the high borosilicate fireproof laminated glass (97) on the buffer substrate (9). The fixing bolt (94) is slidably matched with the top of the installation steel box (8). The shock-absorbing rubber sheet (96) is fixedly mounted on both sides of the bottom of the thick aluminum plate (93) and is sealed with the top of the high borosilicate fireproof laminated glass (97). The two sides of the shock-absorbing rubber sheet (95) are sealed with the high borosilicate fireproof laminated glass (97).

3. The fireproof glass cover for track area according to claim 1, characterized in that: The adjustable buffer mechanism comprises a pressure block (901), a pressure sensor (902), a shock-absorbing adjustment plate (903), an adjustment rod (904) and a shock-absorbing spring (905); the pressure block (901) is fixedly mounted on the bottom of the buffer base plate (9); four groups of the pressure sensors (902) are arranged and are equidistantly embedded in the top of the shock-absorbing adjustment plate (903) in a ring shape; the shock-absorbing adjustment plate (903) is fixedly mounted on the pressure block (901) through the pressure sensor (902); the adjustment rod (904) is threadedly connected to the inside of the shock-absorbing adjustment plate (903); the shock-absorbing spring (905) is sleeved on the surface of the adjustment rod (904); a retaining ring is fixedly mounted on the bottom of the surface of the adjustment rod (904) and located at the top of the inner wall of the mounting steel box (8); the top end of the shock-absorbing spring (905) is fixedly mounted on the bottom of the shock-absorbing adjustment plate (903); and the bottom end of the shock-absorbing spring (905) is fixedly mounted on the top of the mounting steel box (8).

4. The fireproof glass cover for track area according to claim 1, characterized in that: The adjustable damping mechanism comprises a damping cylinder (101), a connecting frame (102), a piston rod (103), a damping force adjusting rod (104), a piston block (105), a limiting ring frame (106), an adjusting ring (107), a limiting groove (1031) and an oil through hole (1051). The tops of the two groups of damping cylinders (101) are respectively fixedly mounted on both sides of the top of the inner wall of the thick fireproof frame (12). One end of the connecting frame (102) is fixedly mounted on the buffer base plate (9), and the other end is fixedly mounted on the piston rod (103). The piston block (105) is slidably mounted inside the damping cylinder (101). The top of the piston rod (103) is fixedly mounted on the piston block (105). 01) is filled with hydraulic oil, the damping force adjustment rod (104) is rotatably mounted inside the piston rod (103), and the top end passes through the piston block (105), two groups of adjustment rings (107) are provided and symmetrically mounted on the top and bottom of the piston block (105), the two groups of adjustment rings (107) are fixedly mounted on the damping force adjustment rod (104), the limiting ring frame (106) is fixedly mounted on the top and bottom of the piston block (105) and is used to limit the rotation of the adjustment ring (107), eight groups of oil through holes (1051) are opened inside the piston block (105), and eight groups of adjustment holes (1071) that penetrate and cooperate with the oil through holes (1051) are opened inside the adjustment ring (107).

5. The fireproof glass cover for track area according to claim 4, characterized in that: The adjustable power switching mechanism comprises a driven rod (111), a stabilizing frame (116), a switching assembly, a tensioning force adjusting assembly, a driving assembly, a driven gear (118), a toothed belt (119), a large gear (9041), a damping force adjusting gear (1041), a gear limiting frame (1042) and a large gear limiting frame (1043), wherein the driven rod (111) is provided with two groups, and the stabilizing frame (116) is fixedly mounted on the top of the rear side of the inner wall of the mounting steel box (8) The driven rod (111) is rotatably mounted on both sides of the top of the stabilizing frame (116). The top and bottom of the driven rod (111) are both mounted on the inner wall of the steel box (8) for rotatable cooperation. The driven gear (118) is slidably coupled to the surface of the driven rod (111) through a keyway and is located inside the stabilizing frame (116). The toothed belt (119) is sleeved on the surface of the driven gear (118) and is used for transmission connection with the driving component. The driving component is arranged on the stabilizing frame (116). The fixing frame (116) is located at the top center and is used to drive the driven gear (118). The tensioning force adjustment component is arranged on the fixing frame (116) and is used to tension the toothed belt (119). The switching component is arranged at the bottom of the fixing frame (116) and is used to switch the driving damping force adjustment gear (1041) and the large gear (9041). The gear limiting frame (1042) is fixedly installed on both sides of the inner wall of the mounting steel box (8). The large gear limiting frame (1043) is fixedly installed. At the top of the two groups of gear limit frames (1042), the large gear (9041) is installed at the bottom of the surface of the adjustment rod (904) through a slidable power coupling via a keyway, the large gear (9041) is located inside the large gear limit frame (1043), the toothed belt (119) is meshed with the driven gear (118), the large gear (9041) is meshed with the connecting frame (102), and the damping force adjustment gear (1041) is meshed with the connecting frame (102).

6. The fireproof glass cover for track area according to claim 5, characterized in that: The switching assembly comprises a coupling tooth (112), a limit frame (113), an arc frame (114) and an electric push rod (115); the coupling tooth (112) is slidably mounted on the surface of the driven rod (111) through a keyway and is located inside the limit frame (113); the limit frame (113) is slidably mounted on the surface of the driven rod (111); the electric push rod (115) is fixedly mounted on the rear side of the bottom of the stabilizing frame (116); the output end of the electric push rod (115) is fixedly mounted on the arc frame (114); and the two ends of the arc frame (114) are fixedly mounted on two groups of the limit frames (113).

7. The fireproof glass cover for track area according to claim 5, characterized in that: The driving assembly comprises a motor (117), a driving gear (1171) and a driving rod (1172); the motor (117) is fixedly mounted on the rear side of the top of the stabilizing frame (116); the output end of the motor (117) is fixedly mounted with the driving rod (1172); the bottom of the driving rod (1172) passes through the stabilizing frame (116) and extends to the bottom of the inner wall of the mounting steel box (8) to rotate with the mounting steel box (8); the driving gear (1171) is mounted on the driving rod (1172) through a slidable power coupling via a keyway and is located at the inner center of the stabilizing frame (116); the driving gear (1171) is meshed with a toothed belt (119); and the driving gear (1171) is transmission-connected to the two sets of driven gears (118) via the toothed belt (119).

8. The fireproof glass cover for track area according to claim 5, characterized in that: The tension adjustment assembly includes a mounting plate (1161), an adjustment bolt (1162), a trapezoidal slider (1163) and a baffle rod (1164); the mounting plate (1161) is fixedly mounted on the front side of the top of the stabilizing frame (116); the adjustment bolt (1162) is axially rotatably mounted through the mounting plate (1161); the trapezoidal slider (1163) is threadedly connected to the surface of the adjustment bolt (1162); the trapezoidal slider (1163) is slidably matched with the bottom of the stabilizing frame (116); and the baffle rod (1164) is fixedly mounted on the bottom of the trapezoidal slider (1163) and is used in conjunction with the toothed belt (119).

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