Construction device and construction method for a theater roof structure

Abstract

The application discloses a construction device and a construction method of a theatre roof structure and belongs to the technical field of building construction. The construction device comprises a temporary limiting device, the temporary limiting device comprises a mounting part and a connecting part, the mounting part comprises a circular mounting seat body and a connecting seat body, adjusting rods are arranged on the circumferential side of the mounting seat body, a connecting ring is arranged at the end of each adjusting rod, coaxial through holes are formed in the mounting seat body, guide rods are slidably arranged in the through holes, a driving structure for driving the guide rods to move is arranged on the mounting seat body, and a spherical hinge structure is connected between the end of each guide rod and the connecting seat body. The connecting part comprises a pre-buried seat body arranged on a vertical building structure, an accommodating groove for accommodating the connecting seat body is formed in the pre-buried seat body, the accommodating groove is rectangular and has an area greater than that of the connecting seat body. The application aims to solve the problems of high difficulty in high-altitude installation of a theatre roof, large span of a roof conversion truss and difficulty in high-altitude construction.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, specifically relating to a construction device and method for a theater roof structure. Background Technology

[0002] Public buildings are becoming increasingly complex in function and structure, with large-span steel structures appearing in large public buildings such as shopping malls, theaters, and libraries.

[0003] Traditional large-span steel structure construction can take into account factors such as site constraints, construction period, and economic efficiency, and adopt construction techniques such as high-altitude assembly, high-altitude cantilever assembly, overall lifting, jacking, or sliding.

[0004] The roof structure of a large theater stage tower is characterized by its large span of the transfer steel truss, the height and weight of each truss, the presence of a lattice steel structure beneath the truss, and the significant distance between the truss layer and the bottom construction interface layer due to the theater's stage requirements, resulting in work at heights of tens of meters. The challenges include overcoming the high-altitude difficulties of the large-span steel truss structure with its lattice steel structure at the bottom, site limitations (such as the inability to use heavy machinery for hoisting), the complex theater structure (inconsistent vertical structures prevent assembly at the bottom), and the difficulty of semi-high-altitude assembly (requiring the use of formwork and vertical supports; the lattice structure beneath the steel truss is weak and cannot bear pressure, making simultaneous assembly with the upper roof steel truss structure difficult). Therefore, it is necessary to solve the problems of high-altitude installation difficulty of the theater roof and the challenges of high-altitude construction with the large span of the roof transfer truss. Summary of the Invention

[0005] In view of this, the present invention discloses a construction device and construction method for a theater roof structure, the purpose of which is to solve the problems of high-altitude installation difficulty of theater roofs and the large span and high-altitude construction difficulty of roof conversion trusses.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A construction device for a theater roof structure includes a temporary limiting device. The temporary limiting device comprises an installation part and a connection part. The installation part includes a circular mounting base and a connecting base. Several adjusting rods are arranged around the periphery of the mounting base, each with a connecting ring at its end. A coaxial through hole is formed on the mounting base, and a guide rod is slidably disposed within the through hole. A driving structure for moving the guide rod is provided on the mounting base, and a ball joint structure connects the end of the guide rod to the connecting base. The connection part includes a pre-embedded base disposed on the vertical building structure. A receiving groove for accommodating the connecting base is formed on the pre-embedded base. The receiving groove is rectangular and its area is larger than that of the connecting base. A movable seat is slidably connected to the sidewall of the receiving groove. A hydraulic telescopic structure facing the center of the receiving groove is provided on the movable seat. A locking pin is provided between the movable seat and the receiving groove. The ends of the hydraulic telescopic structure are detachably connected to the sidewall of the connecting base.

[0007] In this scheme, the temporary limiting device is installed at the end of the roof structure. When the roof structure is suspended, the guide rod is driven by the drive structure to move, which in turn pushes the connecting seat at the end of the guide rod toward the pre-embedded seat until the pre-embedded seat extends into the receiving groove. Then, the position of the movable seat is adjusted, and the hydraulic telescopic structure at the end of the movable section is connected to the side wall of the connecting seat. Then, by adjusting the position of the movable seat in conjunction with the extension and retraction of the hydraulic telescopic structure, the position of the connecting seat is adjusted. In turn, the angle and position of the truss structure layer are adjusted by the guide rod and the mounting seat. The horizontal position of the truss structure layer is adjusted by using the drive structure to drive the movement of the guide rod, ensuring that the position of the truss structure layer meets the design requirements, thereby ensuring the assembly accuracy of the grid structure.

[0008] Furthermore, the guide rod is slidably connected to several support rings, each with a groove on its inner wall facing its axis. Limiting teeth are slidably connected within each groove, and an elastic reset element is provided between the limiting teeth and the groove. An annular block is rotatably connected to the outer wall of the support ring, and a rotating structure for driving the annular block to rotate is provided on the support ring. A pushing protrusion for pushing the limiting teeth is provided on the inner wall of the annular block, and the end of the pushing protrusion is arc-shaped. Several limiting grooves that mate with the limiting teeth are provided around the guide rod. Several sets of adjustable-length connecting parts are provided between adjacent support rings, between the support ring and the mounting base, and between the support ring and the connecting base.

[0009] When the connecting seat needs to be moved, rotating the annular block forward causes the pushing protrusion to separate from the limiting tooth. Under the action of the elastic reset element, the limiting tooth disengages from the limiting groove, allowing the support ring to move relative to the guide rod. With the adjustment of the length of the connecting piece, the connecting seat can move relative to the mounting seat. Rotating the annular block in the reverse direction pushes the pushing protrusion to insert the limiting tooth into the limiting groove, restricting the sliding of the support ring relative to the guide rod and limiting the length of the connecting piece. Thus, the cooperation between the support ring and the connecting piece can provide support for the connecting seat and the mounting seat, providing stability for the temporary limiting device.

[0010] Furthermore, the connecting component includes several interlocking cross units, each cross unit including two support rods hinged together in the middle; the side walls of the support ring, connecting seat, and mounting seat are all provided with several guide grooves corresponding to the connecting component, and two symmetrically arranged supports are slidably connected in the guide grooves. The supports are hinged to the ends of adjacent support rods. Several limiting holes are provided in the side walls of the guide grooves. A cavity is provided inside the support, and through grooves facing the limiting holes are provided on both sides of the cavity. Limiting rods are slidably connected in the through grooves, and the same elastic support is provided between the limiting rods and the through grooves. An electromagnet for attracting the limiting rods is provided in the cavity.

[0011] When the length of the connector needs to be adjusted, the electromagnet is energized, attracting the limiting rod and allowing the support to slide relative to the guide groove. This allows the support rod of the cross unit to deflect relative to the guide groove, thus adjusting the length of the connector. When the electromagnet is de-energized, the limiting rod, under the action of the elastic support, inserts into the limiting hole, restricting the sliding of the support and thus limiting the length of the connector. The entire operation is simple and quick. In addition, when the guide rod is subjected to shear force, the adjacent support rings on both sides of the shear force position of the guide rod engage with the limiting groove through the limiting teeth, and with the support of the connector, the shear force is converted into the axial force of the guide rod, improving the shear resistance of the guide rod.

[0012] Furthermore, two sealing plates are hinged to both sides of the end face of the pre-embedded base, and each sealing plate has an opening at its end. Adjacent sealing plates are detachably connected by connectors.

[0013] Furthermore, the guide rod includes several rod sections, and adjacent rod sections are detachably connected.

[0014] Furthermore, the adjusting rod is rotatably connected to the periphery of the mounting base, and a locking pin is also provided between the end of the adjusting rod and the mounting base, so the adjusting rod is adjustable.

[0015] A construction method for a construction device for a theater roof structure includes the following steps: 1) Equipment erection: Assemble the jig in mid-air and install a support frame between the jig and the base plate; 2) Installation of pre-embedded base: Two layers of installation parts are laid on the vertical structure, so that the two layers of installation parts correspond to the two suspension points during the lifting process of the roof structure; 3) Assemble the truss layer: Assemble the truss structure layer of the roof structure piece by piece on the jig, and then connect the connecting rings at both ends of the adjusting rod to the truss structure layer, thereby installing the connection part at the end of the truss structure layer; and install the lifting equipment at the top of the vertical structure of the building; 4) First Lift: Connect the steel cable of the lifting equipment to the truss structure layer, and use the lifting equipment for the first lift until the end of the truss structure layer is directly aligned with the installation position of the first layer, then stop lifting; rotate the ring block to separate the pushing protrusion from the limiting tooth, and the limiting tooth disengages from the limiting groove under the action of the elastic reset component; then energize the electromagnet, and the electromagnet attracts the limiting rod, allowing the support to slide relative to the guide groove; then drive the guide rod to move through the drive structure, thereby pushing the connecting seat at the end of the guide rod towards the pre-embedded seat, until the connecting seat extends into the pre-embedded seat receiving groove; then adjust the position of the moving seat and connect the hydraulic telescopic structure at the end of the moving section to the side wall of the connecting seat; then deflect the closing plate to close the receiving groove, and install the connecting piece to fix the closing plate; throughout the process, the length of the connecting piece is adjusted by the mutual deflection of the support rods of the cross unit to keep the connection between the connecting seat, the mounting seat, and the support ring; 5) Adjustment: By adjusting the position of the movable seat in conjunction with the extension and retraction of the hydraulic telescopic structure, the position of the connecting seat is adjusted. This, in turn, adjusts the angle and position of the truss structure layer via the guide rod and the mounting seat. The drive structure moves the guide rod to adjust the horizontal position of the truss structure layer, ensuring that the position of the truss structure layer meets design requirements and thus ensuring the assembly accuracy of the grid structure. At this time, the annular block is rotated in the opposite direction, pushing the protrusion to insert the limiting teeth into the limiting groove, restricting the sliding of the support ring relative to the guide rod. The electromagnet is de-energized, and the limiting rod, under the action of the elastic support, inserts into the limiting hole, restricting the sliding of the support and thus limiting the length of the connecting piece. The connecting piece and the support ring provide support between the connecting seat and the mounting seat. Furthermore, when the guide rod is subjected to shear force, the adjacent support rings on both sides of the shear force-affected position of the guide rod, through the engagement of the limiting teeth and the limiting groove, combined with the support of the connecting piece, convert the shear force into an axial force on the guide rod, improving the guide rod's shear resistance. 6) Assemble the grid structure: Assemble the lower grid structure layer at the bottom of the truss structure layer; 7) Second lifting: After disassembling the connector, reset the sealing plate, then separate the hydraulic telescopic structure from the connecting seat; rotate the ring block again and energize the electromagnet; then drive the guide rod through the drive structure to reset the connecting seat; then perform the second lifting until the end of the truss structure layer is directly aligned with the installation position of the second layer, then stop lifting. 8) Roof structure installation: Repeat step 5) After adjusting the truss structure layer into place, fill in the missing connecting members between the roof structure and the vertical structure; then dismantle the equipment in sequence.

[0016] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0017] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration: Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the structure during the first lifting in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure during the second lifting action in an embodiment of the present invention; Figure 5 for Figure 3 Enlarged view of point B in the middle; Figure 6 for Figure 3 An enlarged schematic diagram of point C in the middle.

[0018] The following are the markings in the attached diagram: mounting base 1, connecting base 2, adjusting rod 3, connecting ring 4, guide rod 5, embedded base 6, movable base 7, hydraulic telescopic structure 8, support ring 9, limiting tooth 10, elastic reset component 11, annular block 12, pushing protrusion 13, limiting protrusion 14, support rod 15, support 16, limiting rod 17, elastic support component 18, electromagnet 19, sealing plate 20, base plate 21, jig 22, support frame 23, truss structure layer 24, vertical structure 25, lifting equipment 26, grid structure layer 27. Detailed Implementation

[0019] like Figures 1-6 As shown: A construction device for a theater roof structure includes a temporary limiting device. The temporary limiting device comprises an installation part and a connecting part. The installation part includes a circular mounting base 1 and a connecting base 2. Several adjusting rods 3 are arranged around the periphery of the mounting base 1, and each adjusting rod 3 has a connecting ring 4 at its end. A coaxial through hole is formed on the mounting base 1, and a guide rod 5 is slidably disposed within the through hole. A driving structure for moving the guide rod 5 is provided on the mounting base 1 (in this embodiment, a motor drive is used, which is a conventional technique and therefore not shown in the figure). (Exit), the end of the guide rod 5 is connected to the connecting seat 2 by a ball joint structure; the connecting part includes a pre-embedded seat 6 set on the vertical building structure, the pre-embedded seat 6 is provided with a receiving groove for accommodating the connecting seat 2, the receiving groove is rectangular and the area is larger than the area of ​​the connecting seat 2, the side walls of the receiving groove are slidably connected to a movable seat 7, the movable seat 7 is provided with a hydraulic telescopic structure 8 facing the center of the receiving groove, the movable seat 7 and the receiving groove are both provided with a locking pin, and the ends of the hydraulic telescopic structure 8 are detachably connected to the side walls of the connecting seat 2.

[0020] In this scheme, the temporary limiting device is installed at the end of the roof structure. When the roof structure is suspended, the guide rod 5 is moved by the drive structure, which in turn pushes the connecting seat 2 at the end of the guide rod 5 toward the pre-embedded seat 6 until the pre-embedded seat 6 extends into the receiving groove. Then, the position of the movable seat 7 is adjusted, and the hydraulic telescopic structure 8 at the end of the movable section is connected to the side wall of the connecting seat 2. Then, by adjusting the position of the movable seat 7 in conjunction with the extension and retraction of the hydraulic telescopic structure 8, the position of the connecting seat 2 is adjusted. Then, the angle and position of the truss structure layer 24 are adjusted by the guide rod 5 and the mounting seat 1. The horizontal position of the truss structure layer 24 is adjusted by using the drive structure to drive the guide rod 5 to ensure that the position of the truss structure layer 24 meets the design requirements, thereby ensuring the assembly accuracy of the grid structure.

[0021] In this embodiment, a plurality of support rings 9 are slidably connected to the guide rod 5. Each support ring 9 has a groove on its inner wall facing its axis. Each groove has a limiting tooth 10 slidably connected to it. An elastic reset member 11 is provided between the limiting tooth 10 and the groove. An annular block 12 is rotatably connected to the outer wall of the support ring 9. The support ring 9 is provided with a rotating structure for driving the annular block 12 to rotate (in this embodiment, a motor drive is used, which is a conventional technical means and is therefore not shown in the figure). The inner wall of the annular block 12 is provided with a pushing protrusion 13 for pushing the limiting tooth 10. The end of the pushing protrusion 13 is arc-shaped. A plurality of limiting grooves that cooperate with the limiting tooth 10 are provided around the guide rod 5. A plurality of adjustable length connecting members are provided between adjacent support rings 9, between support rings 9 and mounting base 1, and between support rings 9 and connecting base 2.

[0022] When the connecting seat 2 needs to be moved, the annular block 12 is rotated in the forward direction, causing the pushing protrusion 13 to separate from the limiting tooth 10. Under the action of the elastic reset member 11, the limiting tooth 10 disengages from the limiting groove, allowing the support ring 9 to move relative to the guide rod 5. With the adjustment of the length of the connecting member, the connecting seat 2 can move relative to the mounting seat 1. The annular block 12 is rotated in the reverse direction, and the pushing protrusion 13 pushes the limiting tooth 10 into the limiting groove, restricting the sliding of the support ring 9 relative to the guide rod 5. At the same time, the length of the connecting member is restricted. Thus, the cooperation between the support ring 9 and the connecting member can provide support for the connecting seat 2 and the mounting seat 1, providing stability for the temporary limiting device.

[0023] In this embodiment, the connector includes several interlocking cross units, each cross unit including two support rods 15 that are hinged together in the middle; the side walls of the support ring 9, the connecting seat 2, and the mounting seat 1 are all provided with several guide grooves corresponding to the connector, and two symmetrically arranged supports 16 are slidably connected in the guide grooves. The supports 16 are hinged to the ends of adjacent support rods 15. Several limiting holes are provided in the side walls of the guide grooves. A cavity is provided inside the support 16. Through grooves facing the limiting holes are provided on both sides of the cavity. Limiting rods 17 are slidably connected in the through grooves, and the same elastic support member 18 is provided between the limiting rods 17 and the through grooves. An electromagnet 19 for attracting the limiting rods 17 is provided in the cavity.

[0024] When the length of the connector needs to be adjusted, the electromagnet 19 is energized, and the electromagnet 19 attracts the limiting rod 17, allowing the support 16 to slide relative to the guide groove. This allows the support rod 15 of the cross unit to deflect relative to the guide groove, thereby adjusting the length of the connector. When the electromagnet 19 is de-energized, the limiting rod 17 is inserted into the limiting hole under the action of the elastic support 18, restricting the sliding of the support 16 and thus limiting the length of the connector. The entire operation is simple and quick. In addition, when the guide rod 5 is subjected to shear force, the adjacent support rings 9 on both sides of the shear force position of the guide rod 5 engage with the limiting groove through the limiting teeth 10, and with the support of the connector, the shear force is converted into the axial force of the guide rod 5, improving the shear resistance of the guide rod 5.

[0025] In this embodiment, two sealing plates 20 are hinged to both sides of the end face of the pre-embedded base 6. Each sealing plate 20 has an opening at its end, and a connector is detachably connected between adjacent sealing plates 20.

[0026] In this embodiment, the guide rod 5 includes several rod sections, and adjacent rod sections are detachably connected.

[0027] In this embodiment, the adjusting rod 3 is rotatably connected to the mounting base 1, and a locking pin is also provided between the end of the adjusting rod 3 and the mounting base 1, so that the adjusting rod 3 is adjustable.

[0028] A construction method for a construction device for a theater roof structure includes the following steps: 1) Equipment erection: Assemble the frame 22 in mid-air and install the support frame 23 between the frame 22 and the base plate 21; 2) Installation of the pre-embedded base 6: Two layers of installation parts are laid on the vertical structure 25, so that the two layers of installation parts correspond to the two suspension points during the lifting process of the roof structure. 3) Assemble the truss layer: Assemble the truss structure layer 24 of the roof structure one by one on the jig 22, and then connect the connecting rings 4 at both ends of the adjusting rod 3 to the truss structure layer 24, thereby installing the connection part at the end of the truss structure layer 24; and install the lifting equipment 26 at the top of the vertical structure 25 of the building. 4) First Lift: Connect the steel cable of the lifting device 26 to the truss structure layer 24, and use the lifting device 26 to perform the first lift until the end of the truss structure layer 24 is directly aligned with the installation position of the first layer, then stop the lift; drive the ring block 12 to rotate through the rotating structure, causing the pushing protrusion 13 to separate from the limiting tooth 10, and the limiting tooth 10 to disengage from the limiting groove under the action of the elastic reset member 11; then energize the electromagnet 19, and the electromagnet 19 attracts the limiting rod 17, allowing the support 16 to slide relative to the guide groove; then drive the... The guide rod 5 moves, which in turn pushes the connecting seat 2 at the end of the guide rod 5 toward the pre-embedded seat 6 until the connecting seat 2 extends into the receiving groove of the pre-embedded seat 6; then the position of the adjusting moving seat 7 is adjusted, and the hydraulic telescopic structure 8 at the end of the moving section is connected to the side wall of the connecting seat 2; then the closing plate 20 is deflected to close the receiving groove, and the connecting piece is installed to fix the closing plate 20; throughout the process, the length of the connecting piece is adjusted by the mutual deflection of the support rods 15 of the cross unit, so that the connecting seat 2, the mounting seat 1 and the support ring 9 are kept connected. 5) Adjustment: By adjusting the position of the movable seat 7 in conjunction with the extension and retraction of the hydraulic telescopic structure 8, the position of the connecting seat 2 is adjusted. Then, the angle and position of the truss structure layer 24 are adjusted via the guide rod 5 and the mounting seat 1. The horizontal position of the truss structure layer 24 is adjusted by using the drive structure to move the guide rod 5, ensuring that the position of the truss structure layer 24 meets the design requirements, thereby ensuring the assembly accuracy of the grid structure. At this time, the annular block 12 is driven to rotate in the opposite direction by the rotating structure, and the protrusion 13 pushes the limiting tooth 10 into the limiting groove, restricting... The support ring 9 slides relative to the guide rod 5; and the electromagnet 19 is de-energized. The limiting rod 17 is inserted into the limiting hole under the action of the elastic support member 18, which restricts the sliding of the support 16, thereby limiting the length of the connecting member. The connecting member and the support ring 9 provide support between the connecting body 2 and the mounting body 1. In addition, when the guide rod 5 is subjected to shear force, the support rings 9 on both sides of the shear force position of the guide rod 5 are engaged with the limiting groove through the limiting teeth 10, and with the support of the connecting member, the shear force is converted into the axial force of the guide rod 5, thereby improving the shear resistance of the guide rod 5. 6) Assemble the grid structure: Assemble the lower grid structure layer 27 at the bottom of the truss structure layer 24; 7) Second lifting: After disassembling the connector, reset the closed plate 20, and then separate the hydraulic telescopic structure 8 from the connecting seat 2; rotate the ring block 12 again and energize the electromagnet 19; then drive the guide rod 5 through the drive structure to reset the connecting seat 2; then perform the second lifting until the end of the truss structure layer 24 is directly aligned with the installation position of the second layer and then stop lifting. 8) Roof structure installation: Repeat step 5) After adjusting the truss structure layer 24 into place, fill in the missing connecting members between the roof structure and the vertical structure 25; then dismantle the equipment in sequence.

[0029] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A construction device for a theater roof structure, comprising a temporary limiting device, characterized in that: The temporary limiting device includes an installation part and a connection part. The installation part includes a circular mounting base and a connecting base. Several adjusting rods are arranged around the periphery of the mounting base, each with a connecting ring at its end. A coaxial through hole is formed on the mounting base, and a guide rod is slidably disposed within the through hole. A driving structure for moving the guide rod is provided on the mounting base, and a ball joint structure connects the end of the guide rod to the connecting base. The connection part includes a pre-embedded base disposed on a vertical building structure. A receiving groove for accommodating the connecting base is formed on the pre-embedded base. The receiving groove is rectangular and its area is larger than that of the connecting base. Moving seats are slidably connected to the side walls of the receiving groove, and the moving seats are provided with a hydraulic telescopic structure facing the center of the receiving groove. Locking pins are provided between the movable seat and the receiving groove. The ends of the hydraulic telescopic structure are detachably connected to the side wall of the connecting seat. Several support rings are slidably connected to the guide rod. Each support ring has a groove on its inner wall facing its axis. Limiting teeth are slidably connected in each groove. An elastic reset element is provided between the limiting teeth and the groove. An annular block is rotatably connected to the outer wall of the support ring. A rotating structure for driving the annular block to rotate is provided on the support ring. A pushing protrusion for pushing the limiting teeth is provided on the inner wall of the annular block. The end of the pushing protrusion is arc-shaped. Several limiting grooves that cooperate with the limiting teeth are provided around the guide rod. Several sets of adjustable-length connecting parts are provided between adjacent support rings, between the support ring and the mounting seat, and between the support ring and the connecting seat.

2. The construction device for a theater roof structure according to claim 1, characterized in that: The connector includes several interlocking cross units, each cross unit comprising two support rods hinged together at their midpoints. The side walls of the support ring, connecting seat, and mounting seat are each provided with several guide grooves corresponding to the connector. Two symmetrically arranged supports are slidably connected within each guide groove. Each support is hinged to the end of an adjacent support rod. Several limiting holes are provided on the side walls of each guide groove. Each support has a chamber inside, with through grooves on both sides of the chamber facing the limiting holes. Limiting rods are slidably connected within each through groove, and identical elastic support members are provided between the limiting rods and the through grooves. An electromagnet for attracting the limiting rods is provided within the chamber.

3. The construction device for a theater roof structure according to claim 2, characterized in that: Two closed plates are hinged to both sides of the end face of the pre-embedded base. Each closed plate has an opening at its end, and a connector is detachably connected between adjacent closed plates.

4. The construction device for a theater roof structure according to claim 3, characterized in that: The guide rod comprises several rod sections, and adjacent rod sections are detachably connected.

5. The construction device for a theater roof structure according to claim 4, characterized in that: The adjusting rod is rotatably connected to the periphery of the mounting base, and a locking pin is also provided between the end of the adjusting rod and the mounting base. The adjusting rod is adjustable.

6. The construction method of the construction device for a theater roof structure according to claim 5, characterized in that, Includes the following steps: 1) Equipment erection: Assemble the jig in mid-air and install a support frame between the jig and the base plate; 2) Installation of pre-embedded base: Two layers of installation parts are laid on the vertical structure, so that the two layers of installation parts correspond to the two suspension points during the lifting process of the roof structure; 3) Assemble the truss layer: Assemble the truss structure layer of the roof structure piece by piece on the jig, and then connect the connecting rings at both ends of the adjusting rod to the truss structure layer, thereby installing the connection part at the end of the truss structure layer; and install the lifting equipment at the top of the vertical structure of the building; 4) First lift: Connect the steel cable of the lifting equipment to the truss structure layer, and use the lifting equipment to perform the first lift until the end of the truss structure layer is directly aligned with the installation position of the first layer. Then stop lifting. Rotate the ring block to separate the pushing protrusion from the limiting tooth. The limiting tooth is disengaged from the limiting groove under the action of the elastic reset component. Then energize the electromagnet. The electromagnet attracts the limiting rod, allowing the support to slide relative to the guide groove. Then, the guide rod is driven to move by the drive structure, which in turn pushes the connecting seat at the end of the guide rod toward the pre-embedded seat until the connecting seat extends into the receiving groove of the pre-embedded seat; then the position of the moving seat is adjusted and the hydraulic telescopic structure at the end of the moving section is connected to the side wall of the connecting seat; then the closing plate is deflected to close the receiving groove, and the connecting piece is installed to fix the closing plate; throughout the process, the length of the connecting piece is adjusted by the mutual deflection of the support rods of the cross unit, so that the connecting seat, the mounting seat and the support ring are kept connected. 5) Adjustment: By adjusting the position of the movable seat in conjunction with the extension and retraction of the hydraulic telescopic structure, the position of the connecting seat is adjusted. Then, the angle and position of the truss structure layer are adjusted by the guide rod and the mounting seat. The horizontal position of the truss structure layer is adjusted by using the drive structure to drive the guide rod to move, ensuring that the position of the truss structure layer meets the design requirements, thereby ensuring the assembly accuracy of the grid structure. At this time, the annular block is rotated in the opposite direction, pushing the protrusion to push the limiting teeth into the limiting groove, thus restricting the sliding of the support ring relative to the guide rod; and the electromagnet is de-energized, and the limiting rod is inserted into the limiting hole under the action of the elastic support, restricting the sliding of the support, thereby limiting the length of the connecting piece. The connecting piece and the support ring provide support between the connecting body and the mounting body; in addition, when the guide rod is subjected to shear force, the adjacent support rings on both sides of the shear force position of the guide rod, through the engagement of the limiting teeth and the limiting groove, and in conjunction with the support of the connecting piece, convert the shear force into the axial force of the guide rod, improving the shear resistance of the guide rod; 6) Assemble the grid structure: Assemble the lower grid structure layer at the bottom of the truss structure layer; 7) Second lifting: After disassembling the connecting parts, reset the sealing plate, and then separate the hydraulic telescopic structure from the connecting seat; Rotate the ring block again and energize the electromagnet; then drive the guide rod through the drive structure to reset the connecting seat. Then proceed with the second lift until the end of the truss structure layer is directly aligned with the installation location of the second layer, at which point the lifting stops. 8) Roof structure installation: Repeat step 5) After adjusting the truss structure layer into place, fill in the missing connecting members between the roof structure and the vertical structure; then dismantle the equipment in sequence.

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