Large-span steel structure construction simulation device and monitoring system based on BIM (Building Information Modeling) technology

Abstract

The invention provides a large-span steel structure construction simulation device and monitoring system based on a BIM technology, and the device comprises a case, the top of the case is provided with an external pulling assembly, the external pulling assembly comprises an outer plate, the outer side surface of the outer plate is fixedly provided with a placement frame, the top of the outer plate and the top of the case are provided with drawings, the front surface of the case is provided with two sliding grooves, and the two sliding grooves are arranged in the case. Compared with the prior art, under the cooperation of the outer pulling assembly and the transmission assembly, a plane in a construction drawing of a large-span steel structure can be unfolded on the top of the machine box, is flattened in the drawing and is kept limited and fixed, and therefore the large-span steel structure can be fixed to the top of the machine box. The display screen is arranged on the sliding rail piece and matched with the display screen installed on the sliding rail piece, a three-dimensional model of construction simulation and various data monitored by a monitoring system and construction scheme drawings are arranged, workers can conveniently master the construction progress, and the device is convenient to use, convenient to store and fold and capable of protecting the display screen to a certain degree.

Description

Technical Field

[0001] The present invention relates to the technical field of BIM simulation devices, and in particular to a large-span steel structure construction simulation device and a monitoring system based on BIM technology. Background Art

[0002] Construction simulation is a virtual engineering implementation technology based on Building Information Modeling (BIM). It verifies, optimizes and improves the construction plan by simulating the actual construction process on a computer. Construction simulation not only includes the three-dimensional virtual implementation of the construction process, but also involves the allocation and use of resources, the prediction of potential safety risks, etc., which affects the geometric structure and functional performance of the building.

[0003] In the field of construction engineering, with the use of BIM technology, construction engineering management has been optimized, and construction engineering has been simulated. Construction simulation is usually achieved through BIM5D technology, which converts the design plan into a visual 3D model and simulates the time and cost of the construction process. This technology allows the entire project construction progress to be displayed in a visual form, which is convenient for relevant personnel to view and adjust at any time. Therefore, some computer equipment is needed to represent the 3D model of construction simulation. However, BIM-based computers do not have a working platform on the construction site, which makes operation inconvenient. There is no platform for viewing drawings and 3D models, which makes it inconvenient to supervise the construction progress. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a large-span steel structure construction simulation device and a monitoring system based on BIM technology to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. Through the cooperation of the external pulling component and the transmission component, the plane in the construction drawing of the large-span steel structure can be unfolded on the top of the chassis, flattened and kept fixed in a limited position in the drawing, and cooperated with the display screen installed on the slide rail to arrange the three-dimensional model of the construction simulation, the various data monitored by the monitoring system, and the construction plan drawings, so as to facilitate the staff to grasp the construction progress. The device is easy to use and convenient to store and fold, and a certain protection is provided for the display screen.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a large-span steel structure construction simulation device based on BIM technology, including a chassis, an external pull component is provided on the top of the chassis, the external pull component includes an outer plate, a placement frame is fixed on the outer surface of the outer plate, drawings are placed on the outer plate and the top of the chassis, two slide grooves are provided on the front of the chassis, and a support plate is connected between the slide groove and the outer plate, the support plate includes a slide plate and a support rod, the two ends of the support rod of the support plate are rotatably connected to the slide plate inside the slide groove through a rotating shaft, a transmission component is provided on the top of the chassis, the transmission component includes a moving frame, and the moving frame is fixed The top of the chassis is fixed, and two mobile frames are symmetrically and slidably installed inside the mobile frame. A winding frame is provided in the mobile frame, and a pressure belt is wound on the winding shaft of the winding frame. The other end of the pressure belt is located at the top of the outer plate, and the outer plate is provided with an insertion block at the top of the pressure belt, and the bottom of the insertion block is connected with the pressure belt. A accommodating cavity is provided on the back of the chassis, and multiple groups of display screens are placed in the accommodating blocks of the chassis. A slide rail member is installed on the top inner wall of the chassis accommodating cavity, and the slide rail member includes a right-angle slide rail and a transverse slide rail. A mounting member is installed at the position of the display screen corresponding to the slide rail member, and the mounting frame slides along the inside of the slide rail member. A control system is arranged inside the front end of the chassis.

[0006] Furthermore, the external pulling component also includes a horizontal frame, and horizontal frames are fixed on the outer walls of both sides of the chassis parallel to the outer plates, and the upper ends of the horizontal frames are open. A horizontal plate is slidably inserted inside the horizontal frame, and connecting plates are fixed to the outer ends of the two horizontal plates located at the placement frame. Anti-slip patterns are provided on the bottom surface of the horizontal plate and on the bottom inner wall of the horizontal frame.

[0007] Furthermore, limiting frames are fixed on both sides of the outer plate, and the transverse plate slides through the limiting frames, and a plurality of first springs are fixed between the inner wall at the bottom of the limiting frame and the transverse plate.

[0008] Furthermore, the transmission assembly also includes a top plate, the top of the transverse frame is provided with a top plate, the top of the transverse plate is in compression contact with the top plate, and a plurality of second springs are fixed between two sides of the top plate and two sides of the transverse frame.

[0009] Furthermore, a bidirectional screw is rotatably installed inside the movable frame through a bearing, the movable frame is threadedly sleeved on the surface of the bidirectional screw, an insertion rod is fixed on the top of the winding frame, and a sliding frame is fixed on the top of the insertion rod that slides through the movable frame, a guide plate is slidably inserted between the two sliding frames, a connecting plate is rotatably connected to the top surface of the top plate through a rotating shaft, and the other end of the connecting plate is rotatably connected to the two ends of the guide plate through the rotating shaft.

[0010] Furthermore, a third spring is sleeved on the surface of the movable frame through which the insertion rod passes, and both ends of the third spring are fixedly connected to the sliding frame and the movable frame. A rotating plate frame is rotatably installed on the side of the winding frame, and the rotating plate frame is fixedly connected to the winding shaft of the winding frame. A vertical plate is fixed at the bottom of the movable frame, and the vertical plate can squeeze the rotating plate frame.

[0011] Furthermore, a connecting frame is fixed on the outer side of the top of the two winding frames, and the other end of the connecting frame is slidably plugged into the two sides of the outer plate, and the plug block is fixed on the connecting frame.

[0012] Furthermore, the mounting member includes a slide seat, which slides along the inside of the slide rail member and can be fixed to the slide rail member by bolts. A universal shaft is installed inside the slide seat, the universal shaft is connected to the bottom of the display screen, and a damper is arranged inside the universal shaft.

[0013] Furthermore, a winding seat is installed at the bottom of the back side of the chassis, and a blocking cloth is rolled up on the winding shaft of the winding seat, and the blocking cloth can block the exit of the accommodating cavity. A vertical groove is opened on the side of the chassis located at the exit end of the accommodating cavity, and a lifting screw is installed inside the vertical groove. The top of the blocking cloth is threadedly connected to the lifting screw. A wiping cotton is provided between the two display screens inside the accommodating cavity of the chassis, and the top two sides of the wiping cotton are fixedly connected to the blocking cloth by connecting ropes.

[0014] A large-span steel structure construction monitoring system based on BIM technology, the monitoring system includes a processor, a monitoring module, a stress monitoring module and a wireless communication module, the processor is used to judge the monitored data and store the monitoring data information, the monitoring module is used to monitor the construction progress, the stress monitoring module is used to monitor the stress data of the large-span steel structure, the wireless communication module is used to connect the processor and the controller of the thruster, the processor is wirelessly connected to the thruster control system through the wireless communication module, and the monitoring module includes an ultrasonic distance sensor, a displacement sensor and a stroke sensor.

[0015] Beneficial effects of the present invention:

[0016] 1. The present invention drives the baffle to be unwound from the winding seat and moved upward by rotating the lifting screw. Since the wiping cotton is filled between the two display screens in the accommodating chamber, and the two sides of the top of the wiping cotton are connected to the blocking cloth, and the bottom is connected to the inner wall of the accommodating chamber, the wiping cotton will also move synchronously with the movement of the baffle. When the display screen is stored in the accommodating chamber, the blocking cloth will shield the outlet end of the accommodating chamber, and the wiping cotton will wipe the surface of the display screen during use, so as to prevent dust and sand in the construction site environment from entering the accommodating chamber while cleaning the surface of the display screen.

[0017] 2. When multiple display screens are needed for use, the present invention pulls out the multiple display screens one by one, and adjusts the display direction by rotating the universal shaft on the slide according to the required display position. The display screens are fixed to the slide rail by bolts to stably display the three-dimensional model of BIM technology construction simulation. After use, the display screens are stored in the accommodating cavity to avoid being affected by the dusty environment of the construction site.

[0018] 3. The top of the chassis and the top of the outer panel of the present invention are connected to the plug block and the winding frame through a connecting frame, and then when the winding frame moves upward, the plug block on the other side will also move synchronously to press the pressure belt on both sides of the drawing. The connection between the connecting frame and the outer panel is actually connected through a vertical frame. The connecting frame passes through the vertical frame of the outer panel and can move up and down along the vertical frame. When the two winding frames on the moving frame are pressed down by the guide plate, the connecting frame will move with the winding frame, and the plug block on the outer panel will move downward with the connecting frame, pressing the pressure belt on both sides of the drawing, clamping and fixing the two sides of the drawing.

[0019] 4. In the present invention, when the guide plate is pressed down, the insertion rod drives the winding frame to descend together, and the rotating plate frame is inserted into the vertical plate. The rotating plate frame rotates through the squeezing of the vertical plate, driving the winding shaft of the winding frame to rotate, and the rotation direction of the rotating plate frame is the winding direction of the winding shaft, so as to tighten the pressure belt. At this time, the rotating plate frame is limited by the vertical plate to prevent its rotation from causing the pressure belt to loosen.

[0020] When the lifting plate is lifted up, the lifting plate is tightened and the lifting plate is tightened, so that the lifting plate is tightened and the lifting frame is tightened. When the lifting plate is lifted up, the lifting plate is tightened and the lifting plate is tightened, and the lifting plate is tightened. When the lifting plate is lifted up, the lifting plate is tightened and the lifting plate is tightened. When the lifting plate is lifted up, the lifting plate is tightened and the lifting plate is tightened.

[0021] 6. Compared with the prior art, the present invention can unfold the plane in the construction drawing of the large-span steel structure on the top of the chassis through the cooperation of the external pulling component and the transmission component, flatten it in the drawing and keep it fixed in a limited position, cooperate with the display screen installed on the slide rail part, arrange the three-dimensional model of the construction simulation, various data monitored by the monitoring system and the construction plan drawings, so that the staff can grasp the construction progress conveniently, and the device is easy to use and easy to store and fold, and a certain protection is provided for the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall front structure of the large-span steel structure construction simulation device based on BIM technology of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall back structure of the large-span steel structure construction simulation device based on BIM technology of the present invention;

[0024] Figure 3 It is a schematic diagram of the internal structure of the back of the chassis of the large-span steel structure construction simulation device based on BIM technology of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection between the display screen and the slide rail member of the large-span steel structure construction simulation device based on BIM technology of the present invention;

[0026] Figure 5 This is a schematic diagram of the installation structure of the large-span steel structure construction simulation device based on BIM technology of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the external pull assembly of the large-span steel structure construction simulation device based on BIM technology of the present invention;

[0028] Figure 7 It is a side structural schematic diagram of the transmission assembly of the large-span steel structure construction simulation device based on BIM technology of the present invention;

[0029] Figure 8 It is a front structural schematic diagram of the transmission assembly of the large-span steel structure construction simulation device based on BIM technology of the present invention;

[0030] Fig. 9 It is a schematic diagram of the side structure of the winding frame of the large-span steel structure construction simulation device based on BIM technology of the present invention.

[0031] In the figure: 1, chassis; 11, display screen; 12, mounting part; 121, slide seat; 122, universal shaft; 2, external pull assembly; 21, outer plate; 22, placement frame; 23, slide groove; 24, support plate; 25, horizontal frame; 26, horizontal plate; 27, limit frame; 28, connecting plate; 29, first spring; 3, drawing; 4, transmission assembly; 41, top plate; 42, second spring; 43, connecting plate; 44, guide plate; 45, slide frame; 46, connecting frame; 47, moving frame; 48, two-way screw; 49, moving frame; 410, pressing belt; 411, rotating plate frame; 412, vertical plate; 413, winding frame; 414, insertion rod; 415, third spring; 416, insertion block; 5, slide rail member; 6, cloth stop; 61, winding seat; 62, vertical groove; 63, wiping cotton. DETAILED DESCRIPTION

[0032] 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.

[0033] See also Figures 1 to 9 , the present invention provides a technical solution:

[0034] A large-span steel structure construction monitoring system based on BIM technology, the monitoring system includes a processor, a monitoring module, a stress monitoring module and a wireless communication module, the processor is used to judge the monitored data and store the monitored data information, the monitoring module is used to monitor the construction progress, the stress monitoring module is used to monitor the stress data of the large-span steel structure, the wireless communication module is used to connect the processor and the controller of the thruster, the processor is wirelessly connected to the thruster control system through the wireless communication module, the monitoring module includes an ultrasonic distance sensor, a displacement sensor and a stroke sensor, the principle of the monitoring system in this scheme is the same as the monitoring system in patent CN117874883A, through the use of multiple modules and sensors, the monitored data is transmitted to the storage unit in the chassis 1 and displayed on the display screen 11, so that in the simulation construction demonstration, the real-time data is fed back to the display screen 11, which is convenient for comparing the actual data with the model prediction data and facilitating the timely correction of the position where the deviation exists.

[0035] The large-span steel structure construction simulation device based on BIM technology comprises a chassis 1, an external pull component 2 is arranged on the top of the chassis 1, the external pull component 2 comprises an outer plate 21, a placement frame 22 is fixed on the outer surface of the outer plate 21, drawings 3 are placed on the outer plate 21 and the top of the chassis 1, two slide grooves 23 are arranged on the front of the chassis 1, and a support plate 24 is connected between the slide groove 23 and the outer plate 21, the support plate 24 comprises a slide plate and a support rod, and both ends of the support rod of the support plate 24 are rotatably connected with the slide plate inside the slide groove 23 through a rotating shaft, a transmission component 4 is arranged on the top of the chassis 1, and the transmission component 4 comprises a moving frame 47, the moving frame 47 is fixed on the top of the chassis 1, and two moving frames 49 are symmetrically slidably installed inside the moving frame 47, a winding frame 413 is provided inside the moving frame 49, and a pressing belt 410 is rolled up on the winding shaft of the winding frame 413, and the other end of the pressing belt 410 is located on the top of the outer plate 21, and the outer plate 21 is provided with an insert block 416 at the top of the pressing belt 410, and the bottom of the insert block 416 is connected to the pressing belt 410, and a receiving cavity is provided on the back of the chassis 1, and multiple display screens 11 are placed in the receiving cavity of the chassis 1, and a slide rail member 5 is installed on the top inner wall of the receiving cavity of the chassis 1, and the slide rail member 5 includes a right-angle slide rail and a horizontal slide rail. The display screen 11 is mounted on the slide rail at a position corresponding to the slide rail member 5. The mounting frame slides along the inside of the slide rail member 5. The front end of the chassis 1 is provided with a control system. When the device is used, the chassis 1 is arranged on the flat ground of the construction site. The display screen 11 in the accommodating cavity on the back of the chassis 1 is taken out and mounted on the straight end of the slide rail. The specific number of display screens 11 to be used is determined according to the number of people watching the construction simulation three-dimensional model demonstration. The data in the construction environment monitored by the monitoring system is sent to the display screen 11. By pulling the outer plate 21 outward, the outer plate 21 is supported by the support plate 24 for inclined support, and the horizontal plate 26 is used for horizontal limit. The pulling distance of the outer panel 21 is determined according to the size of the drawing 3. The drawing 3 roll is placed inside the placement frame 22, and one end of the drawing 3 is placed at the front end of the moving frame 47. The pressing belt 410 is used for simple limiting. As the outer panel 21 is pulled outward, the drawing 3 in the placement frame 22 is gradually unfolded until it is completely flat and arranged on the top of the outer panel 21 and the chassis 1. The pressing belt 410 is also unwound synchronously according to the length of the drawing 3 to keep in contact with both sides of the figure. After the drawing 3 is fully unfolded, the pressing belt 410 is tightened and squeezed to cover both sides of the figure to keep the flatness of the drawing 3, so as to facilitate the comparison between the three-dimensional model data in the figure and the display screen 11.

[0036] In this embodiment, the external pull component 2 also includes a transverse frame 25. Transverse frames 25 are fixed on the outer walls of the chassis 1 on both sides parallel to the outer panels 21, and the upper ends of the transverse frames 25 are open. Transverse plates 26 are slidably inserted inside the transverse frames 25. Two transverse plates 26 are located at the outer ends of the placement frame 22 and are fixed with connecting plates 28. Anti-slip grooves are provided on the bottom surface of the transverse plates 26 and on the bottom inner walls of the transverse frames 25. Limiting frames 27 are fixed on both sides of the outer panels 21, and the transverse plates 26 slide through the limiting frames 27. A plurality of first springs 29 are fixed between the bottom inner walls of the limiting frames 27 and the transverse plates 26. The transmission component 4 also includes a top plate 41. The top of the transverse frame 25 is provided with a top plate 41, the top of the transverse plate 26 is in extrusion contact with the top plate 41, and a plurality of second springs 42 are fixed between the two sides of the top plate 41 and the two sides of the transverse frame 25, a bidirectional screw 48 is rotatably installed inside the moving frame 47 through a bearing, and the moving frame 49 is threadedly sleeved on the surface of the bidirectional screw 48, a plug rod 414 is fixed on the top of the winding frame 413, and a sliding frame 45 is fixed on the top of the plug rod 414 that slides out of the moving frame 49, and a guide plate 44 is slidably inserted between the two sliding frames 45, and a connecting plate 43 is rotatably connected to the top surface of the top plate 41 through a rotating shaft, and the other end of the connecting plate 43 is rotatably connected to the two ends of the guide plate 44 through a rotating shaft, and the outer plate 21 is outward. When moving, the connecting plate 28 moves with the outer plate 21, and the transverse plates 26 at both ends of the connecting plate 28 slide along the transverse frame 25. After the outer plate 21 is pulled out to a distance that satisfies the fully unfolded drawing 3, the connecting plate 28 is manually pushed upward, and the connecting plate 28 slides along the limit frame 27 and the inside of the transverse frame 25 to lift the top plate 41 on the top of the transverse frame 25. The top plate 41 is connected to the transverse frame 25 through the second spring 42. The top plate 41 moves upward to push the guide plate 44 upward through the connecting plate 43. At this time, the restriction on the winding frame 413 can be released to prevent the unwinding pressing belt 410. When the connecting plate 28 is released, the transverse plate 26 is restored to the transverse frame 25 under the action of the first spring 29 and the second spring 42. , and the bottom of the horizontal plate 26 and the bottom inner wall of the horizontal frame 25 are provided with anti-slip grooves, so the outer plate 21 can be kept from moving without external force by friction contact, thereby maintaining the stability of the unfolded drawing 3. For drawings 3 of different widths, the bidirectional screw 48 inside the mobile frame 47 is rotated, and the two mobile frames 49 and the bidirectional screw 48 are threadedly matched to slide along the inside of the mobile frame 47, and the sliding frame 45 on the top of the mobile frame 49 slides along the guide plate 44 to maintain the connectivity between the mobile frame 49 and the guide plate 44. Through the connection of the connecting frames 46 on both sides, the positions of the mobile frame 49 and the insert block 416 can be adjusted at the same time to keep the pressing belt 410 parallel to the side of the drawing 3.

[0037] In this embodiment, a third spring 415 is sleeved on the surface of the insertion rod 414 passing through the movable frame 49, and the two ends of the third spring 415 are fixedly connected to the sliding frame 45 and the movable frame 49. A rotating plate frame 411 is rotatably installed on the side of the winding frame 413, and the rotating plate frame 411 is fixedly connected to the winding shaft of the winding frame 413. A vertical plate 412 is fixed to the bottom of the movable frame 49, and the vertical plate 412 can squeeze the rotating plate frame 411. In the initial state, under the action of the third spring 415, the winding frame 413 is located at the top of the movable frame 49, and the insertion rod 414 passes through the movable frame 49. At this time, the vertical plate 412 at the bottom of the movable frame 49 is not in contact with the rotating plate frame 411, and will not interfere with the rotation of the rotating plate frame 411. When the guide plate 44 is pressed down, the insertion rod 414 drives the winding frame 413 to descend together, and the rotating plate frame 411 is inserted into the vertical plate 412. The rotating plate frame 411 rotates through the squeezing of the vertical plate 412, driving the winding shaft of the winding frame 413 to rotate, and the rotation direction of the rotating plate frame 411 is the winding direction of the winding shaft, so as to tighten the pressure belt 410. At this time, the rotating plate frame 411 is limited by the vertical plate 412 to prevent its rotation from causing the pressure belt 410 to loosen.

[0038] In this embodiment, a connecting frame 46 is fixed to the outer side of the top of the two winding frames 413, and the other end of the connecting frame 46 is slidably inserted on both sides of the outer plate 21, and the plug block 416 is fixed on the connecting frame 46. The top of the chassis 1 and the top of the outer plate 21 are connected to the plug block 416 and the winding frame 413 through the connecting frame 46. Then, when the winding frame 413 moves upward, the plug block 416 on the other side will also move synchronously to press the pressing belt 410 on both sides of the figure. In this structure, the connection between the connecting frame 46 and the outer plate 21 is actually connected through a vertical frame. The connecting frame 46 passes through the vertical frame of the outer plate 21 and can move up and down along the vertical frame at the same time. This structure is relatively common, so it is not shown in the figure. When the two winding frames 413 on the moving frame 47 are pressed down by the guide plate 44, the connecting frame 46 will move together with the winding frame 413, and the plug block 416 on the outer plate 21 will move downward together with the connecting frame 46, pressing the pressing belt 410 on both sides of the drawing 3, clamping and fixing the two sides of the drawing 3.

[0039] In this embodiment, the mounting member 12 includes a slide 121, which slides along the inside of the slide rail member 5, and the slide 121 can be fixed to the slide rail member 5 by bolts. A universal shaft 122 is installed inside the slide 121, and the universal shaft 122 is connected to the bottom of the display screen 11, and a damper is arranged inside the universal shaft 122. The display screen 11 slides along the slide rail member 5 through the slide 121. The L-shaped and linear composition of the slide rail member 5 can make the display screen 11 be pulled out of the accommodating cavity and moved to the position of the linear slide rail. When multiple display screens 11 are needed to be used together, the multiple display screens 11 are pulled out one by one, and the display direction is adjusted by rotating the universal shaft 122 on the slide 121 according to the required display position. The display screen 11 is fixed to the slide rail member 5 by bolts, so as to stably display the three-dimensional model of BIM technology construction simulation. After use, the display screen 11 is stored in the accommodating cavity to avoid being affected by the dusty environment of the construction site.

[0040] In this embodiment, a winding seat 61 is installed at the bottom of the back of the chassis 1, and a blocking cloth 6 is rolled up on the winding shaft of the winding seat 61, and the blocking cloth 6 can block the outlet of the accommodating cavity. A vertical groove 62 is opened on the side of the chassis 1 located at the outlet end of the accommodating cavity, and a lifting screw is installed inside the vertical groove 62. The top of the blocking cloth 6 is threadedly connected to the lifting screw. A wiping cotton 63 is provided between the two display screens 11 inside the accommodating cavity of the chassis 1, and the top two sides of the wiping cotton 63 are fixedly connected to the blocking cloth 6 by a connecting rope. Vertical grooves 62 are provided on the two outer walls at the outlet end of the accommodating cavity, and a lifting screw is installed inside the vertical groove 62. The lifting screw is not shown in the figure. As shown, the baffle is driven by the built-in motor and the rotation of the lifting screw, which drives the baffle to be unwound and pulled out from the winding seat 61 and move upward. Because the two display screens 11 inside the accommodating chamber are filled with wiping cotton 63, and the top two sides of the wiping cotton 63 are connected to the blocking cloth 6, and the bottom is connected to the inner wall of the accommodating chamber, the wiping cotton 63 will also move synchronously with the movement of the baffle. When the display screen 11 is stored in the accommodating chamber, the blocking cloth 6 blocks the exit end of the accommodating chamber, and the wiping cotton 63 wipes the surface of the display screen 11 during use, so as to prevent dust and sand and gravel in the construction site environment from entering the accommodating chamber while cleaning the surface of the display screen 11.

[0041] When using the device, the chassis 1 is arranged on the flat ground of the construction site, and the display screen 11 in the accommodating cavity on the back of the chassis 1 is taken out and installed on the straight end of the slide rail. The specific number of display screens 11 to be used is determined according to the number of people watching the construction simulation three-dimensional model demonstration. The data in the construction environment monitored by the monitoring system is sent to the display screen 11. When the outer plate 21 moves outward, the connecting plate 28 moves with the outer plate 21, and the cross plates 26 at both ends of the connecting plate 28 slide along the cross frame 25. After the outer plate 21 is pulled out to a distance that meets the drawing 3 and is fully unfolded, the connecting plate 28 is manually pushed upward, and the connecting plate 28 slides along the limit frame 27 and the inside of the cross frame 25 to lift the top plate 41 on the top of the cross frame 25. The top plate 41 is pushed up by the second elastic The spring 42 is connected to the transverse frame 25, and the top plate 41 moves upward to push the guide plate 44 upward through the connecting plate 43. At this time, the restriction on the winding frame 413 can be released to prevent the unwinding pressing belt 410. When the connecting plate 28 is loosened, the transverse plate 26 is restored to the inside of the transverse frame 25 under the action of the first spring 29 and the second spring 42, and the bottom of the transverse plate 26 and the inner wall of the bottom of the transverse frame 25 are provided with anti-slip grooves, so that the outer plate 21 can be kept from moving without external force by friction contact, thereby maintaining the stability of the drawing 3 after unfolding. For drawings 3 of different widths, the bidirectional screw 48 inside the moving frame 47 is rotated, and the two moving frames 49 are threadedly matched with the bidirectional screw 48 to slide along the inside of the moving frame 47 The slide frame 45 on the top of the mobile frame 49 slides along the guide plate 44 to maintain the connectivity between the mobile frame 49 and the guide plate 44. Through the connection of the connecting frames 46 on both sides, the positions of the mobile frame 49 and the plug block 416 can be adjusted at the same time, and the pressing belt 410 is kept parallel to the side of the drawing 3 to maintain the flatness of the drawing 3, so as to facilitate the comparison between the three-dimensional model data in the drawing and the display screen 11. When multiple display screens 11 are needed for use, the multiple display screens 11 are pulled out one by one, and the display direction is adjusted by rotating the universal shaft 122 on the slide seat 121 according to the required display position. The display screen 11 is fixed to the slide rail member 5 by bolts, so as to stably display the three-dimensional model of BIM technology construction simulation. After use, the display screen 11 is put into the storage chamber to avoid being affected by the dusty environment of the construction site. After the display screen 11 is stored, the baffle is driven to be unrolled and pulled out from the winding seat 61 and move upward through the rotation of the lifting screw. Because the two display screens 11 in the storage chamber are filled with wiping cotton 63, and the top two sides of the wiping cotton 63 are connected to the blocking cloth 6, and the bottom is connected to the inner wall of the storage chamber, the wiping cotton 63 will also move synchronously with the movement of the baffle. When the display screen 11 is stored in the storage chamber, the blocking cloth 6 blocks the exit end of the storage chamber, and the wiping cotton 63 is used to wipe the surface of the display screen 11 during use, so as to prevent dust and sand and gravel in the construction site environment from entering the storage chamber while cleaning the surface of the display screen 11.

[0042] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious 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 characteristics of the present invention.

[0043] 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 large-span steel structure construction simulation device based on BIM technology, comprising a chassis (1), characterized in that: The top of the chassis (1) is provided with an external pull component (2), the external pull component (2) includes an outer plate (21), a placement frame (22) is fixed on the outer surface of the outer plate (21), drawings (3) are placed on the outer plate (21) and the top of the chassis (1), two slide grooves (23) are provided on the front of the chassis (1), and a support plate (24) is connected between the slide groove (23) and the outer plate (21), the support plate (24) includes a slide plate and a support rod, and the two ends of the support rod of the support plate (24) are rotatably connected to the slide plate inside the slide groove (23) through a rotating shaft, and the top of the chassis (1) is provided with a transmission component (4), the transmission component (4) includes a moving frame (47), the moving frame (47) is fixed on the top of the chassis (1), and two moving frames (49) are symmetrically slidably installed inside the moving frame (47) The movable frame (49) is provided with a winding frame (413), and a pressure belt (410) is wound on the winding shaft of the winding frame (413), the other end of the pressure belt (410) is located at the top of the outer plate (21), the outer plate (21) is provided with an insert block (416) at the top of the pressure belt (410), and the bottom of the insert block (416) is connected to the pressure belt (410), the back of the chassis (1) is provided with a accommodating cavity, and multiple groups of display screens (11) are placed in the accommodating cavity of the chassis (1), a slide rail member (5) is installed on the top inner wall of the accommodating cavity of the chassis (1), and the slide rail member (5) includes a right-angle slide rail and a transverse slide rail, the display screen (11) is installed with a mounting member (12) at a position corresponding to the slide rail member (5), the mounting frame slides along the inside of the slide rail member (5), and a control system is arranged inside the front end of the chassis (1).

2. The large-span steel structure construction simulation device based on BIM technology according to claim 1 is characterized in that: The external pull-out assembly (2) further comprises a transverse frame (25), and the transverse frames (25) are fixed on the outer walls of both sides of the chassis (1) parallel to the outer plates (21), and the upper ends of the transverse frames (25) are open, and the interior of the transverse frames (25) is slidably plugged with transverse plates (26), and the two transverse plates (26) are located at the outer ends of the placement frame (22) and are fixed with connecting plates (28), and anti-slip grooves are provided on the bottom surfaces of the transverse plates (26) and on the bottom inner walls of the transverse frames (25).

3. The large-span steel structure construction simulation device based on BIM technology according to claim 2 is characterized in that: Limiting frames (27) are fixed on both sides of the outer plate (21), and the transverse plate (26) slides through the limiting frames (27). A plurality of first springs (29) are fixed between the inner wall at the bottom of the limiting frame (27) and the transverse plate (26).

4. The large-span steel structure construction simulation device based on BIM technology according to claim 3 is characterized in that: The transmission assembly (4) further comprises a top plate (41), the top of the transverse frame (25) is provided with the top plate (41), the top of the transverse plate (26) is in compression contact with the top plate (41), and a plurality of second springs (42) are fixed between two sides of the top plate (41) and two sides of the transverse frame (25).

5. The large-span steel structure construction simulation device based on BIM technology according to claim 4 is characterized in that: A bidirectional screw (48) is rotatably mounted inside the movable frame (47) via a bearing, the movable frame (49) is threadedly sleeved on the surface of the bidirectional screw (48), an insertion rod (414) is fixed on the top of the winding frame (413), a sliding frame (45) is fixed on the top of the insertion rod (414) which slides out of the movable frame (49), a guide plate (44) is slidably inserted between the two sliding frames (45), a connecting plate (43) is rotatably connected to the top surface of the top plate (41) via a rotating shaft, and the other end of the connecting plate (43) is rotatably connected to the two ends of the guide plate (44) via a rotating shaft.

6. The large-span steel structure construction simulation device and monitoring system based on BIM technology according to claim 5 is characterized in that: A third spring (415) is sleeved on the surface of the insertion rod (414) passing through the movable frame (49), and the two ends of the third spring (415) are fixedly connected to the sliding frame (45) and the movable frame (49). A rotating plate frame (411) is rotatably installed on the side of the winding frame (413), and the rotating plate frame (411) is fixedly connected to the winding shaft of the winding frame (413). A vertical plate (412) is fixed on the bottom of the movable frame (49), and the vertical plate (412) can press the rotating plate frame (411).

7. The large-span steel structure construction simulation device based on BIM technology according to claim 6 is characterized in that: A connecting frame (46) is fixed on the outer sides of the tops of the two winding frames (413), and the other end of the connecting frame (46) is slidably plugged into the two sides of the outer plate (21), and the plug block (416) is fixed on the connecting frame (46).

8. The large-span steel structure construction simulation device based on BIM technology according to claim 1 is characterized in that: The mounting member (12) comprises a slide seat (121), the slide seat (121) slides along the inside of the slide rail member (5), and the slide seat (121) can be fixed on the slide rail member (5) by bolts, a universal shaft (122) is installed inside the slide seat (121), the universal shaft (122) is connected to the bottom of the display screen (11), and a damper is arranged inside the universal shaft (122).

9. The large-span steel structure construction simulation device based on BIM technology according to claim 1, characterized in that: A reel (61) is installed at the bottom of the back of the chassis (1), and a blocking cloth (6) is rolled up on the reel of the reel (61), and the blocking cloth (6) can block the outlet of the accommodating cavity. A vertical groove (62) is opened on the side of the chassis (1) at the outlet of the accommodating cavity, and a lifting screw is installed inside the vertical groove (62). The top of the blocking cloth (6) is threadedly connected to the lifting screw. A wiping cotton (63) is provided between the two display screens (11) inside the accommodating cavity of the chassis (1), and the top two sides of the wiping cotton (63) are fixedly connected to the blocking cloth (6) by connecting ropes.

10. The large-span steel structure construction monitoring system based on BIM technology implemented by the device according to claim 1 is characterized in that: The monitoring system includes a processor, a monitoring module, a stress monitoring module and a wireless communication module. The processor is used to judge the monitored data and store the monitoring data information. The monitoring module is used to monitor the construction progress. The stress monitoring module is used to monitor the stress data of the large-span steel structure. The wireless communication module is used to connect the processor and the controller of the thruster. The processor is wirelessly connected to the thruster control system through the wireless communication module. The monitoring module includes an ultrasonic distance sensor, a displacement sensor and a stroke sensor.

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