A steel space frame for gymnasium roofs

Abstract

The application discloses a kind of steel structure net rack for stadium roof, it is related to roof steel structure technical field, including net rack main body and adjusting mechanism;The net rack main body includes vertical main body support pole, horizontal main body support pole and support structure;The adjusting mechanism includes first electric slide rail, second electric slide rail, first ceiling structure and second ceiling structure;First electric slide rail, second electric slide rail control second ceiling structure and first ceiling structure coincide, open stadium roof, assist the ventilation of venue interior, can enhance illumination in daytime, second ceiling structure and first ceiling structure combination, close stadium roof to prevent rainwater from invading, improve the use effect of stadium, air pump, high-pressure airflow passage and air outlet cooperate control sealing strip respectively with first electric slide rail and second electric slide rail separate, reduce the wear of sealing strip, when air pump is closed, sealing strip resets, effectively play waterproof effect.

Description

Technical Field

[0001] This invention belongs to the field of roof steel structure technology, specifically a steel structure space frame for the roof of a gymnasium. Background Technology

[0002] A gymnasium is a large-scale building facility specifically designed for sports activities and events. The steel structure space frame of the gymnasium roof is a complex spatial structure. A steel structure space frame is a grid-like spatial rod structure composed of rods arranged according to certain rules. It has high rigidity and stability, and has advantages such as light weight, high rigidity, excellent seismic performance, easy factory production, and convenient installation. This structure is suitable for buildings of various spans, and can be used in public buildings such as gymnasiums, theaters, canteens, and restaurants, as well as industrial buildings such as roofs of industrial plants and workshops.

[0003] The existing steel structure space frame for stadium roofs has certain drawbacks. When in use, the top of the existing steel structure space frame for stadium roofs is usually fixed as either closed or open, and the roof state cannot be changed according to the actual needs of the site. When it is hot in summer, the closed steel structure roof is not conducive to heat dissipation. If the roof is fixedly designed as open, although it is convenient for ventilation, it is easy for rainwater to enter during rain. As a result, the venue can only be used in sunny weather, which reduces the effectiveness of the stadium and fails to meet people's needs. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a steel structure space frame for the roof of a gymnasium.

[0005] A steel structure space frame for a gymnasium roof includes a space frame main body installed on the gymnasium roof and an adjustment mechanism installed on the space frame main body; wherein, the space frame main body includes several sets of vertical main support rods, horizontal main support rods perpendicularly connected to the vertical main support rods, and several sets of support structures installed between the vertical main support rods and the horizontal main support rods; the adjustment mechanism includes a first electric slide rail detachably installed on the upper end of the horizontal main support rod, a second electric slide rail installed on one side of the first electric slide rail, a first canopy structure detachably fixed below the first electric slide rail and the second electric slide rail, and a mechanism movably installed on the first electric slide rail and the second electric slide rail. The first and second roof structures are arranged in a way that overlaps or combines with the first and second roof structures. When the first and second roof structures overlap, the roof of the stadium is open, which helps with ventilation inside the stadium and enhances sunlight during the day. When the roof needs to be closed, the first and second electric sliding rails are controlled to position the second roof structure between the first roof structure. The first and second roof structures combine to cover the roof, preventing rainwater from entering. Thus, the first and second roof structures can work together to achieve the effect of freely opening and closing the roof of the stadium.

[0006] As a further aspect of the present invention: the first canopy structure is detachably installed between two sets of transverse main support rods, including a first canopy connecting frame, a second canopy connecting frame disposed on one side of the first canopy connecting frame, and a first canopy panel detachably installed on the upper ends of the first and second canopy connecting frames, wherein the first canopy panel is composed of several sets of cover plates.

[0007] As a further aspect of the present invention: both the first electric slide rail and the second electric slide rail are provided with slide rail grooves. The slide rail groove on the first electric slide rail is provided with a first slider that is detachably connected to the second canopy structure. The slide rail groove on the second electric slide rail is provided with a second slider that is detachably connected to the second canopy structure. Both the first slider and the second slider can slide and move in the slide rail grooves.

[0008] As a further aspect of the present invention: the second canopy structure includes a first connecting frame disposed between several groups of first sliders, a second connecting frame disposed between several groups of second sliders, and second canopy panels respectively laid on the upper ends of the first connecting frame and the second connecting frame. The second canopy panels are composed of several groups of cover plates. The first sliders are detachably connected to the first connecting frame, and the second sliders are detachably connected to the second connecting frame. The first sliders and the second sliders can respectively drive the two groups of second canopy panels to move. The second canopy panels are set as rigid canopies. The second canopy panels are movably disposed above the first canopy panels. Several groups of second canopy panels and several groups of first canopy panels can be installed at an angle, which allows rainwater to roll down in the angled direction and prevents it from entering the interior through gaps.

[0009] As a further aspect of the present invention: both the first and second electric slide rails are provided with sealing components. The sealing components include a sealing strip movably disposed on the top surface of the inner side of the slide rail groove, several sets of high-pressure airflow channels respectively installed in the first and second electric slide rails, an air outlet disposed on one side of the sealing strip and connected to the high-pressure airflow channels, and several sets of air pumps respectively detachably installed at the lower end of the first and second electric slide rails and supplying gas to the high-pressure airflow channels. One end of the high-pressure airflow channel is connected to the air pump, and the air pump supplies high-pressure gas through the high-pressure airflow channel and the air outlet.

[0010] As a further aspect of the present invention: both ends of the second canopy panel extend into the inner sides of the first and second electric slide rails respectively; the lower end face of the sealing strip is detachably connected to the upper end face of the second canopy panel; the sealing strip gradually moves away from the interior of the first and second electric slide rails along the height direction, and its thickness gradually decreases; the air outlet is inclinedly aligned with the upper end of the sealing strip; the sealing strip is made of elastic material; the air pump separates the sealing strip from the inner top surface of the slide rail groove through a high-pressure airflow channel and the air outlet; the air pump delivers high-pressure gas to squeeze the opposite sealing strip outward, that is, to detach the end of the sealing strip from the inner top surface of the electric slide rail, thereby reducing the wear of the sealing strip and extending its service life; when the air pump is turned off, the free end of the sealing strip will abut against the inner top surface of the electric slide rail under its own elastic force, preventing external rainwater from entering from the side, thus achieving an effective waterproofing effect.

[0011] As a further aspect of the present invention: a sealing strip is provided on the upper surface of the second canopy panel on the second connecting frame, and the sealing strip is connected to the lower surface of the second canopy panel on the first connecting frame. The sealing strip seals the overlapping area between the two to prevent rainwater from entering from the overlapping area in the event of heavy rainfall.

[0012] As a further aspect of the present invention: the support structure includes a first inclined support rod that is inclined and cross-arranged inside the main body of the grid frame and a first vertical rod that is vertically arranged inside the main body of the grid frame. The two ends of the first inclined support rod are respectively fixedly connected to two sets of horizontal main support rods. The top end of the first vertical rod is vertically connected to the horizontal main support rods, and the bottom end of the first vertical rod is fixedly connected to the first inclined support rod, thereby improving the stability between the horizontal main support rods and the vertical main support rods.

[0013] As a further embodiment of the present invention: the support structure further includes several sets of second vertical rods disposed between the first inclined support rod and the horizontal main support rod below the vertical main support rod, and second inclined support rods disposed between the first inclined support rod and the first vertical rod. The two sets of second vertical rods and the two sets of second inclined support rods are respectively disposed on both sides of the first vertical rod. The top end of the second vertical rod is fixedly connected to the first inclined support rod, and the bottom end of the second vertical rod is vertically fixed to the horizontal main support rod.

[0014] As a further aspect of the present invention: a third inclined support rod is installed on one side of the second vertical rod, and the other end of the third inclined support rod is fixedly connected to the horizontal main support rod. Two sets of the third inclined support rods are symmetrically arranged on both sides of the first vertical rod. The first inclined support rod, the first vertical rod, the second vertical rod, the second inclined support rod, and the third inclined support rod divide the internal structure between the horizontal main support rod and the vertical main support rod into several triangles. The triangular support can distribute the force on each rod, improve the load-bearing capacity, and increase stability.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) The present invention uses a set of grid frame main body and adjustment mechanism. The first roof connecting frame, the second roof connecting frame and the first roof plate layer form the first roof structure. The first connecting frame, the second connecting frame and the second roof plate layer are assembled into the second roof structure. The first electric slide rail, the second electric slide rail, the first slider and the second slider control the second roof structure to overlap with the first roof structure, so that the roof of the gymnasium is opened, which can assist the ventilation inside the venue and enhance the sunlight during the day. When the second roof structure is combined with the first roof structure, the roof of the gymnasium is closed, which can prevent rainwater from entering, thereby improving the use effect of the gymnasium. The sealing strip can seal the two sets of second roof plate layers. The air pump, high pressure airflow channel and air outlet can control several sets of sealing strips to separate from the first electric slide rail and the second electric slide rail respectively, reducing the wear of the sealing strips. When the air pump is turned off, the sealing strips are reset, which can effectively waterproof the gymnasium.

[0017] (2) The overall frame is formed by vertical main support rods and horizontal main support rods. The frame is initially supported by the first diagonal support rod and the first vertical rod to improve its stability. The first diagonal support rod is supported by the second vertical rod. The second diagonal support rod and the third diagonal support rod are connected to the first diagonal support rod and the second vertical rod respectively, thereby dividing the internal structure into several triangles. The triangular support can distribute the force of each rod, improve the load-bearing capacity and increase the stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a partial structural diagram of the main body of the space frame in this invention.

[0020] Figure 3 This is a partial structural diagram of the support structure in this invention.

[0021] Figure 4 This is a partial structural diagram of the adjustment mechanism in this invention.

[0022] Figure 5 This is a partial structural diagram of the sealing assembly in this invention.

[0023] Figure 6 This is a partial structural diagram of the adjusting mechanism and sealing assembly in this invention.

[0024] In the diagram: 1. Vertical main support rod; 2. Horizontal main support rod; 3. First diagonal support rod; 4. First vertical rod; 5. Second vertical rod; 6. Second diagonal support rod; 7. Third diagonal support rod; 8. First electric slide rail; 9. Slide rail groove; 10. First slider; 11. First connecting frame; 12. Second electric slide rail; 13. Second slider; 14. Second connecting frame; 15. First ceiling connecting frame; 16. Second ceiling connecting frame; 17. Second ceiling panel; 18. Sealing strip; 19. High-pressure airflow channel; 20. Air outlet; 21. Air pump; 22. Sealing strip. Detailed Implementation

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1

[0027] Please see Figure 1 - Figure 2 and Figure 4This application provides a steel structure space frame for a gymnasium roof, including a space frame main body installed on the gymnasium roof and an adjustment mechanism installed on the space frame main body; wherein, the space frame main body includes several sets of vertical main support rods 1, horizontal main support rods 2 perpendicularly connected to the vertical main support rods 1, and several sets of support structures installed between the vertical main support rods 1 and the horizontal main support rods 2, the several sets of vertical main support rods 1 and the several sets of horizontal main support rods 2 are assembled into an integral frame; the adjustment mechanism includes a first electric slide rail 8 detachably installed on the upper end of the horizontal main support rod 2, a second electric slide rail 12 installed on one side of the first electric slide rail 8, and a third electric slide rail 12 detachably fixed below the first electric slide rail 8 and the second electric slide rail 12. A canopy structure and a second canopy structure are movable between the first electric slide rail 8 and the second electric slide rail 12. The first canopy structure can be arranged to overlap with or in combination with the second canopy structure. When the first canopy structure can overlap with the second canopy structure, the roof of the gymnasium is in an open state, which can assist the ventilation inside the venue and enhance the sunlight during the day. When it is necessary to close the roof of the gymnasium, the first electric slide rail 8 and the second electric slide rail 12 are controlled respectively to make the second canopy structure located between the first canopy structure, so that the first canopy structure and the second canopy structure combine to cover the roof and prevent rainwater from entering. Thus, the first canopy structure and the second canopy structure can work together to achieve the effect of freely opening and closing the roof of the gymnasium.

[0028] In this invention, the first canopy structure is detachably installed between two sets of transverse main support rods 2, including a first canopy connecting frame 15, a second canopy connecting frame 16 located on one side of the first canopy connecting frame 15, and a first canopy panel detachably installed on the upper ends of the first canopy connecting frame 15 and the second canopy connecting frame 16. The first canopy panel is composed of several sets of cover plates.

[0029] In this invention, both the first electric slide rail 8 and the second electric slide rail 12 are provided with slide rail grooves 9. The slide rail groove 9 on the first electric slide rail 8 is provided with a first slider 10 that is detachably connected to the second canopy structure. The slide rail groove 9 on the second electric slide rail 12 is provided with a second slider 13 that is detachably connected to the second canopy structure. Both the first slider 10 and the second slider 13 can slide and move in the slide rail groove 9.

[0030] The second canopy structure of this invention includes a first connecting frame 11 disposed between several groups of first sliders 10, a second connecting frame 14 disposed between several groups of second sliders 13, and second canopy panels 17 respectively laid on the upper ends of the first connecting frame 11 and the second connecting frame 14. The second canopy panels 17 are composed of several groups of cover plates. The first sliders 10 and the first connecting frame 11 are detachably connected, and the second sliders 13 and the second connecting frame 14 are detachably connected. The first sliders 10 and the second sliders 13 can respectively drive the two groups of second canopy panels 17 to move. The second canopy panels 17 are set as rigid canopies. The second canopy panels 17 are movably disposed above the first canopy panels. Both the several groups of second canopy panels 17 and the several groups of first canopy panels can be installed at an angle, which allows rainwater to roll down in the angled direction and prevents it from entering the interior through gaps.

[0031] In summary, cover plates are laid on the first ceiling connecting frame 15 and the second ceiling connecting frame 16 to form the first ceiling panel layer, and cover plates are laid on the first connecting frame 11 and the second connecting frame 14 to form the second ceiling panel layer 17. The position of the second ceiling panel layer 17 on the first connecting frame 11 and the second connecting frame 14 can be controlled by the first electric slide rail 8 and the second electric slide rail 12 respectively. Activating the first electric slide rail 8 and the second electric slide rail 12 causes the first slider 10 and the second slider 13 to slide in the slide rail groove 9, so that the first slider 10 drives the first connecting frame. 11 moves, and the second slider 13 drives the second connecting frame 14 to move, so that the first connecting frame 11 and the second connecting frame 14 control the movement of the second roof panel 17. When the second roof panel 17 overlaps with the first roof panel, the roof of the stadium is open, which can assist the ventilation inside the stadium and enhance the sunlight during the day. When the second roof panel 17 and the first roof panel are combined to cover the roof, the roof of the stadium is closed, which can prevent rainwater from entering and make the rainwater roll down in the sloping direction to avoid entering the interior through the gaps.

[0032] Example 2

[0033] Reference Figure 4 - Figure 6 This is the second embodiment of the present invention. In this invention, both the first electric slide rail 8 and the second electric slide rail 12 are provided with sealing components. The sealing components include a sealing strip 22 movably disposed on the top surface of the inner side of the slide rail groove 9, several sets of high-pressure airflow channels 19 respectively installed in the first electric slide rail 8 and the second electric slide rail 12, an air outlet 20 disposed on one side of the sealing strip 22 and connected to the high-pressure airflow channel 19, and several sets of air pumps 21 respectively detachably installed at the lower end of the first electric slide rail 8 and the second electric slide rail 12 and supplying gas to the high-pressure airflow channel 19. One end of the high-pressure airflow channel 19 is connected to the air pump 21, and the air pump 21 supplies high-pressure gas through the high-pressure airflow channel 19 and the air outlet 20.

[0034] In this invention, the two ends of the second canopy panel 17 extend into the inner sides of the first electric slide rail 8 and the second electric slide rail 12, respectively. The lower end face of the sealing strip 22 is detachably connected to the upper end face of the second canopy panel 17. The sealing strip 22 gradually moves away from the interior of the first electric slide rail 8 and the second electric slide rail 12 along the height direction, and the thickness gradually decreases. The air outlet 20 is inclinedly aligned with the upper end of the sealing strip 22. The sealing strip 22 is made of elastic material. The air pump 21 separates the sealing strip 22 from the inner top surface of the slide rail groove 9 through the high-pressure airflow channel 19 and the air outlet 20. The air pump 21 delivers high-pressure gas to squeeze the opposite sealing strip 22 outward, that is, the end of the sealing strip 22 is separated from the inner top surface of the electric slide rail, reducing the wear of the sealing strip 22 and extending the service life of the sealing strip 22. When the air pump 21 is turned off, the free end of the sealing strip 22 will abut against the inner top surface of the electric slide rail under its own elastic force, preventing external rainwater from entering from the side and achieving an effective waterproof effect.

[0035] In this invention, a sealing strip 18 is provided on the upper surface of the second canopy layer 17 on the second connecting frame 14. The sealing strip 18 is connected to the lower surface of the second canopy layer 17 on the first connecting frame 11. The sealing strip 18 seals the area where the two overlap, preventing rainwater from entering from the overlap area in the event of heavy rainfall.

[0036] In summary, when the first electric slide rail 8 and the second electric slide rail 12 are activated, the first slider 10 and the second slider 13 drive the two sets of second canopy layers 17 to move, causing the sealing strip 18 to move. The air pump 21 is then activated, delivering high-pressure gas through the high-pressure airflow channel 19 and discharging it through the outlet 20. This forces the opposing sealing strip 22 outwards, detaching the end of the sealing strip 22 from the inner top surface of the first electric slide rail 8 and the second electric slide rail 12. This causes the first slider 10 and the second slider 13 to move the second canopy layer 17, preventing the sealing strip 22 on the second canopy layer 17 from rubbing against the first electric slide rail 8 and the second electric slide rail 12, thus extending the service life of the sealing strip 22. When the first electric slide rail 8 and the second electric slide rail 12 are closed, the air pump 21 closes the free end of the sealing strip 22, which, under its own elastic force, abuts against the inner top surface of the slide rail groove 9, preventing external rainwater from entering from the side and effectively achieving a waterproof effect.

[0037] Example 3

[0038] Reference Figure 1 - Figure 3This is the second embodiment of the present invention. In this embodiment, the support structure includes a first inclined support rod 3 that is inclined and cross-arranged inside the main body of the grid frame and a first vertical rod 4 that is vertically arranged inside the main body of the grid frame. The two ends of the first inclined support rod 3 are respectively fixedly connected to two sets of horizontal main support rods 2. The top end of the first vertical rod 4 is vertically connected to the horizontal main support rod 2, and the bottom end of the first vertical rod 4 is fixedly connected to the first inclined support rod 3, thereby improving the stability between the horizontal main support rod 2 and the vertical main support rod 1.

[0039] The support structure of this invention also includes several sets of second vertical rods 5 disposed between the first inclined support rod 3 and the horizontal main support rod 2 below the vertical main support rod 1, and second inclined support rods 6 disposed between the first inclined support rod 3 and the first vertical rod 4. The two sets of second vertical rods 5 and the two sets of second inclined support rods 6 are respectively disposed on both sides of the first vertical rod 4. The top end of the second vertical rod 5 is fixedly connected to the first inclined support rod 3, and the bottom end of the second vertical rod 5 is vertically fixed to the horizontal main support rod 2.

[0040] In this invention, a third inclined support rod 7 is installed on one side of the second vertical rod 5, and the other end of the third inclined support rod 7 is fixedly connected to the horizontal main support rod 2. Two sets of third inclined support rods 7 are symmetrically arranged on both sides of the first vertical rod 4. The first inclined support rod 3, the first vertical rod 4, the second vertical rod 5, the second inclined support rod 6 and the third inclined support rod 7 divide the internal structure between the horizontal main support rod 2 and the vertical main support rod 1 into several triangles. The triangular support can distribute the force on each rod, improve the load-bearing capacity and increase the stability, thereby enabling the adjustment mechanism to operate safely.

[0041] In summary, the lower parts of the two sets of vertical main support rods 1 and the two ends of the horizontal main support rods 2 are fixedly connected. The first diagonal support rod 3 and the second vertical rod 5 are both installed on the horizontal main support rod 2. The two ends of the third diagonal support rod 7 are fixedly connected to the horizontal main support rod 2 and the first diagonal support rod 3 respectively. One end of the first vertical rod 4 is installed on the first diagonal support rod 3. The two ends of the other set of horizontal main support rods 2 are installed on the upper parts of the two sets of vertical main support rods 1, so that the horizontal main support rod 2 is fixedly connected to the first diagonal support rod 3 and the first vertical rod 4 respectively. The other vertical main support rods 1, horizontal main support rods 2, first diagonal support rods 3, first vertical rods 4, second vertical rods 5, second diagonal support rods 6 and third diagonal support rods 7 are fixedly installed in sequence. The first diagonal support rods 3, first vertical rods 4, second vertical rods 5, second diagonal support rods 6 and third diagonal support rods 7 divide the internal structure between the horizontal main support rods 2 and the vertical main support rods 1 into several triangles.

[0042] Example 4

[0043] Reference Figure 1 - Figure 6This embodiment is obtained by combining Embodiment 1 and Embodiment 2.

[0044] The main body of the space frame is formed by the fixed installation of vertical main support rod 1, horizontal main support rod 2, first diagonal support rod 3, first vertical rod 4, second vertical rod 5, second diagonal support rod 6, and third diagonal support rod 7. The first roof connecting frame 15, second roof connecting frame 16, and first roof panel form the first roof structure. The first connecting frame 11, second connecting frame 14, and second roof panel 17 are assembled to form the second roof structure. The first electric slide rail 8, second electric slide rail 12, first slider 10, and second slider 13 control the second roof structure. When the canopy structure overlaps with the first canopy structure, the roof of the gymnasium is open. When the second canopy structure is combined with the first canopy structure, the roof of the gymnasium is closed. The sealing strip 18 can achieve sealing performance between the two sets of second canopy panels 17. The air pump 21, high-pressure airflow channel 19 and air outlet 20 work together to control the separation of several sets of sealing strips 22 from the first electric slide rail 8 and the second electric slide rail 12 respectively, reducing the wear of the sealing strips 22. When the air pump 21 is turned off, the sealing strips 22 are reset, achieving an effective waterproof effect.

[0045] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A steel structural grid for a stadium roof, characterized in that, The net rack body is arranged on the roof of the gymnasium, and the adjusting mechanism is arranged on the net rack body; The net rack body comprises a plurality of groups of vertical main support rods, horizontal main support rods connected perpendicularly with the vertical main support rods, and a plurality of groups of support structures arranged between the vertical main support rods and the horizontal main support rods; The adjusting mechanism comprises a first electric sliding rail detachably mounted on the upper end of the horizontal main support rod, a second electric sliding rail arranged on one side of the first electric sliding rail, a first ceiling structure detachably and fixedly arranged below the first electric sliding rail and the second electric sliding rail, and a second ceiling structure movably arranged between the first electric sliding rail and the second electric sliding rail; The first ceiling structure is arranged in coincidence with or in combination with the second ceiling structure. The first electric sliding rail and the second electric sliding rail are both provided with a sealing assembly, the sealing assembly comprises a sealing strip movably arranged on the inner side top surface of the sliding rail sliding groove, a plurality of groups of high-pressure airflow channels respectively mounted in the first electric sliding rail and the second electric sliding rail, an air outlet arranged on one side of the sealing strip and communicated with the high-pressure airflow channels, and a plurality of groups of air pumps respectively detachably mounted at the lower end of the first electric sliding rail and the second electric sliding rail and conveying gas to the high-pressure airflow channels; The lower end surface of the sealing strip is detachably connected with the upper end surface of the second ceiling plate layer, the sealing strip gradually moves away from the inside of the first electric sliding rail and the second electric sliding rail along the height direction, and the thickness gradually decreases, the air outlet is inclinedly aligned with the upper end of the sealing strip, the sealing strip is made of elastic material, and the air pump separates the inner side top surface of the sealing strip and the sliding rail sliding groove through the high-pressure airflow channels and the air outlet. The upper end surface of the second ceiling plate layer on the second connecting frame is provided with a sealing strip.

2. The steel structure space truss for a stadium roof according to claim 1, characterized in that, The first ceiling structure comprises a first ceiling connecting frame detachably mounted between the two groups of horizontal main support rods, a second ceiling connecting frame arranged on one side of the first ceiling connecting frame, and a first ceiling plate layer detachably mounted at the upper end of the first ceiling connecting frame and the second ceiling connecting frame.

3. A steel structure space truss for a stadium roof according to claim 2, characterized in that, The first electric sliding rail and the second electric sliding rail are both provided with a sliding rail sliding groove, the sliding rail sliding groove on the first electric sliding rail is provided with a first sliding block detachably connected with the second ceiling structure, and the sliding rail sliding groove on the second electric sliding rail is provided with a second sliding block detachably connected with the second ceiling structure.

4. The steel structure space truss for a stadium roof according to claim 3, wherein The second ceiling structure comprises a first connecting frame arranged between a plurality of groups of the first sliding blocks, a second connecting frame arranged between a plurality of groups of the second sliding blocks, and a second ceiling plate layer respectively laid on the upper end of the first connecting frame and the upper end of the second connecting frame, the second ceiling plate layer is movably arranged above the first ceiling plate layer, and a plurality of groups of the second ceiling plate layer and a plurality of groups of the first ceiling plate layer are both tiltably mounted.

5. A steel structure space truss for a stadium roof according to claim 4, characterized in that, The sealing strip is connected with the lower end surface of the second ceiling plate layer on the first connecting frame.

6. A steel structure space truss for a stadium roof according to claim 5, characterized in that, The support structure comprises first inclined support rods obliquely arranged inside the net rack body and first vertical rods vertically arranged inside the net rack body, two ends of the first inclined support rods are fixedly connected with two groups of transverse body support rods respectively, the top end of the first vertical rod is vertically connected with the transverse body support rod, and the bottom end of the first vertical rod is fixedly connected with the first inclined support rod.

7. A steel structure space truss for a stadium roof according to claim 6, characterized in that, The support structure further comprises second vertical rods arranged between the first inclined support rods and the transverse body support rods below the vertical body support rods and second inclined support rods arranged between the first inclined support rods and the first vertical rods, two groups of the second vertical rods and two groups of the second inclined support rods are arranged on two sides of the first vertical rod respectively, the top end of the second vertical rod is fixedly connected with the first inclined support rod, and the bottom end of the second vertical rod is vertically fixed with the transverse body support rod.

8. A steel structure space truss for a stadium roof according to claim 7, characterized in that, One side of the second vertical rod is provided with a third inclined support rod, the other end of the third inclined support rod is fixedly connected with the transverse body support rod, and two groups of the third inclined support rods are symmetrically arranged on two sides of the first vertical rod.

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