Green building design device based on BIM technology

Abstract

The invention relates to the technical field of green building design, in particular to a green building design device based on a BIM technology. The supporting column comprises a supporting column main body, a sliding groove is formed in the surface of the supporting column main body, a portable folding and unfolding supporting assembly is arranged on the inner wall of the sliding groove in a sliding mode, the portable folding and unfolding supporting assembly comprises a first rotating plate and a second rotating plate which are hinged, and the first rotating plate and the second rotating plate are in a connecting state parallel to the axis of the supporting column main body in a folded state and are in an unfolded state. The portable folding and unfolding supporting assembly and the curtain folding and unfolding assembly are unfolded to form a stable triangular supporting structure, and the surface of the portable folding and unfolding supporting assembly is rotationally connected with the curtain folding and unfolding assembly. The first rotating plate and the second rotating plate are in the state of being parallel to the axis of the supporting column body and are integrally contained in the sliding groove, the curtain is contained in the curtain winding drum, the U-shaped frame makes contact with the surface of the curtain winding drum for limiting, and the equipment is compact in overall structure, free of redundant outwards-protruding parts, capable of being carried by a single person and capable of easily meeting the transportation requirement of complex environments such as construction sites.

Description

Technical Field

[0001] The present invention relates to the technical field of green building design, and in particular to a green building design device based on BIM technology. Background Art

[0002] BIM technology is used to test building information modeling and application skills, provide guarantees for the development of building information technology through BIM technology, improve the application level of information technology of construction industry practitioners, promote technological innovation, and meet the transformation and upgrading needs of the construction industry. For example, the application of BIM technology in architectural design usually requires the use of a projector and a screen to display the design information, and then discuss and study the innovative content. It is also necessary to conduct on-site surveys and research at the construction site based on the content of the architectural design to ensure the rationality of the design in different environments and locations. For example, the Chinese patent with publication number CN215954061U is a green building design device based on BIM technology; In the green building design device using BIM technology, its core operation process revolves around the precise positioning of the screen and the visual presentation of BIM content. First, according to the design requirements and projection angle, the screen is moved to the preset appropriate position through the device's transmission structure (such as slide rails, screws or hydraulic rods). This position must meet the requirements of complete coverage of the projection image and facilitate observation and interaction by designers. At the same time, it conforms to the principle of "efficient space utilization" in green building design and avoids the screen occupying redundant space. After the screen position is fixed, the projector connected to the BIM system is started to accurately project the core technical information of the BIM model, such as the building's three-dimensional structure, energy consumption analysis data, green material parameters, and sunlight simulation results, onto the screen surface. At this time, the screen acts as a visual carrier, clearly presenting the various design details and analysis results generated by BIM technology, facilitating the design team to view, discuss and adjust plans in real time, realizing the efficient combination of BIM technology and physical display, and promoting the precision and collaboration of green building design. Considering that there are two main types of common screen structures, one is the bracket type, in which the screen is rolled up on the reel of the metal bracket, and the bottom of the bracket is mostly a heavy tripod or fixed base. Although it is very stable after unfolding, the overall weight is large, and it requires multiple people to carry it when moving, which is especially difficult to push on the rugged ground of the construction site. The other type is a simple hanging type. The screen itself is light, but it needs to rely on the walls, scaffolding and other fixed objects on site for hanging. It is not only restricted by the site environment (for example, there is nowhere to hang it in an open area), but the height and flatness must be readjusted every time it is unfolded. A slight shake will easily cause it to tilt, affecting the projection effect. Summary of the Invention

[0003] The purpose of the present invention is to provide a green building design device based on BIM technology to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides a green building design device based on BIM technology, comprising a support column body, a slide groove is provided on the surface of the support column body, and a portable retractable support assembly is slidably provided on the inner wall of the slide groove; The portable stowable support assembly comprises a hinged first rotating plate and a second rotating plate. When stowed, the two are connected parallel to the axis of the support column. When deployed, the two are unfolded to form a stable triangular support structure. The surface of the portable retractable support assembly is rotatably connected to the curtain retractable assembly, and is used to push the curtain of the curtain retractable assembly to unfold to both sides simultaneously in the unfolded state; A fixed support assembly is provided on the surface of the portable retractable support assembly, and the fixed support assembly includes a rotatable U-shaped frame. When in the retracted state: the inner surface of the U-shaped frame contacts the surface of the curtain retractable assembly to achieve limited fixation of the curtain; when in the unfolded state: the U-shaped frame rotates around its pivot axis until it contacts the ground to support the curtain retractable assembly and the portable retractable support assembly.

[0005] During the unfolding operation, the first rotating plate and the second rotating plate form a stable triangular support structure. The portable retractable support assembly is rotatably connected to the curtain retractable assembly. During the unfolding process, the curtain can be simultaneously pushed to both sides to unfold without the need for additional operating steps. This realizes the linkage between the unfolding of the support structure and the unfolding of the curtain, thereby improving the efficiency of the equipment.

[0006] As a further improvement of the present technical solution, the portable stowage and expansion support assembly includes a first rotating block sliding on the inner wall of the slide groove, the surface of the first rotating block is rotatably connected to a first rotating plate, the end of the first rotating plate away from the first rotating block is rotatably connected to a second rotating device, the inner wall of the second rotating device is rotatably connected to the second rotating plate, the first rotating plate and the second rotating plate form a linked rotating structure through the second rotating device, the first rotating block is slidably set in the upper area of ​​the inner wall of the slide groove and displaced along the axial direction of the slide groove, and the end of the second rotating plate rotates in the lower area of ​​the inner wall of the slide groove; The first rotating block is limited to the upper area of ​​the slide and displaces axially, and the end of the second rotating plate is rotatably connected to the lower area of ​​the slide. This upper and lower staggered fulcrum design allows the two to fit tightly in the slide parallel to the axis of the support column when stored, and can quickly form a triangular support structure when unfolded. The state switching can be completed by only pushing the fixed support component, and the operation steps are simplified.

[0007] As a further improvement of the present technical solution, two ends of the first rotating block are respectively fixedly connected to sliders, and one end of the slider away from the first rotating block is fixedly connected to the first connecting plate, and a folding flap is rotatably connected to the surface of the first connecting plate, and the folding flap is rotatably connected to the curtain retracting and unfolding assembly to cooperate with the rotation of the portable retractable and unfolding support assembly to realize the unfolding action of the curtain, and a limiting slide rail is provided on the inner wall of the slide groove, and the surface of the slider slides with the inner wall of the limiting slide rail to limit the displacement trajectory of the first rotating block when sliding along the inner wall of the slide groove, and a buckle positioning groove is provided on the inner wall of the limiting slide rail, and a protrusion is elastically slidably provided on the inner wall of the slider; The limiting slide rail on the inner wall of the slide groove slides in cooperation with the surface of the slider, limiting the displacement trajectory of the first rotating block when it slides along the slide groove, avoiding lateral offset or shaking during the sliding process. The buckle positioning groove on the inner wall of the limiting slide rail cooperates with the elastic sliding protrusion on the inner wall of the slider. When the first rotating block slides to the preset position, the protrusion is snapped into the buckle positioning groove under the action of elastic force, which can firmly lock the position of the first rotating block.

[0008] As a further improvement of the present technical solution, the end of the folding flap away from the first connecting plate is rotatably connected to the second connecting plate, and the end of the second connecting plate away from the folding flap is fixedly connected to the curtain reel, and the inner wall of the curtain reel is provided with a curtain, and the two curtain reel can be synchronously unfolded outward so that the curtain slides out from the inside of the curtain reel and unfolds; Through the linkage structure of the folding flap, the second connecting plate and the two screen retracting drums, when the folding flap rotates with the retraction and extension support assembly, the two screen retracting drums can be driven to unfold outward synchronously, ensuring that the screen slides out symmetrically from the retracting drums on both sides, avoiding the screen skew caused by unilateral unfolding, ensuring that the screen surface is flat after unfolding, and improving the projection display effect.

[0009] As a further improvement of the present technical solution, the fixed support assembly includes a third rotator fixedly connected to the surface of the second rotator, the inner wall of the third rotator is rotatably connected to a U-shaped frame, and the bottom of the U-shaped frame and the bottom of the curtain reel are located on the same horizontal plane as the bottom of the support column body; When in the stowed state, the U-shaped frame can contact the surface of the screen retraction and extension components through its own structure, effectively limiting and fixing the screen to prevent the screen from accidentally unfolding during the movement of the equipment. When in the unfolded state, the U-shaped frame rotates to contact the ground. With the stability of its U-shaped structure, it provides reliable support for the screen retraction and extension components and the portable retraction and extension support components, thereby enhancing the overall stability of the equipment during use.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. In this BIM-based green building design device, in the initial storage state, the first and second rotating plates are parallel to the main axis of the support column and are stored in the slide slot as a whole. The curtain is stored inside the curtain reel, and the U-shaped frame is in contact with the surface of the curtain reel to limit the position. The overall structure of the device is compact, with no redundant protruding parts, and can be carried by one person, easily meeting the transportation needs of complex environments such as construction sites. This solves the problem of traditional bracket-type equipment being difficult to move due to its scattered components and large size. Moreover, no tools are required during the unfolding process. Only the fixed support assembly needs to be pushed downward to link the portable retractable support assembly to form a triangular support structure, while driving the curtain of the curtain retractable assembly to unfold to both sides. The operation steps are simple and the installation time is greatly shortened. Compared with the cumbersome process of traditional curtains that require separate assembly of brackets and adjustment of curtains, the installation efficiency is significantly improved, which is especially suitable for scenes with high requirements on operational efficiency, such as construction sites.

[0011] 2. In this green building design device based on BIM technology, when the U-shaped frame is in the stowed state, its inner surface contacts the surface of the screen retracting and extending assembly, which can effectively limit the movement of the screen and prevent the screen from accidentally unfolding due to shaking during the movement of the equipment. When in the unfolded working state, it rotates around the pivot axis until it contacts the ground, and the bottom is on the same horizontal plane as the bottom of the screen retracting drum and the bottom of the support column body, which can form a stable support for the screen retracting and extending assembly and the portable retracting and extending support assembly, thereby enhancing the overall stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure assembly of the present invention; Figure 2 This is a schematic diagram of the overall structure of the portable foldable and unfoldable support assembly of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A; Figure 4 It is a schematic diagram of the overall top structural plan of the present invention; Figure 5 This is a schematic structural diagram of the first rotating plate of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure at point B; Figure 7 For the present invention Figure 5 Schematic diagram of the enlarged structure at C; Figure 8 Schematic diagram of the second rotating plate structure of the present invention; Figure 9 It is a schematic diagram of the folding flap structure of the present invention.

[0013] The meaning of each number in the figure is: 100, support column body; 101, slide groove; 102, limit slide rail; 103, buckle positioning groove; 200, portable stowable support assembly; 210, first rotating block; 2101, slider; 220, first rotating plate; 2201, second rotator; 2202, second rotating plate; 230, first connecting plate; 240, folding flap; 300, curtain retracting assembly; 310, curtain retracting drum; 3101, curtain; 320, second connecting plate; 400, fixed support assembly; 410, third rotator; 420, U-shaped frame; DETAILED DESCRIPTION

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0015] Example 1 See also Figures 1-9 As shown, this embodiment provides a green building design device based on BIM technology, including a support column body 100, a slide groove 101 is provided on the surface of the support column body 100, and a portable retractable support assembly 200 is slidably provided on the inner wall of the slide groove 101; The portable stowable support assembly 200 comprises a hinged first rotating plate 220 and a second rotating plate 2202. When stowed, the two are connected parallel to the axis of the support column body 100. When deployed, the two are unfolded to form a stable triangular support structure. The surface of the portable retractable support assembly 200 is rotatably connected to the curtain retractable assembly 300, and is used to push the curtain 3101 of the curtain retractable assembly 300 to unfold to both sides simultaneously in the unfolded state; The surface of the portable stowage support assembly 200 is provided with a fixed support assembly 400, and the fixed support assembly 400 includes a rotatable U-shaped frame 420; In the retracted state: the inner surface of the U-shaped frame 420 contacts the surface of the curtain retracting and unfolding assembly 300, thereby limiting and fixing the curtain 3101; In the deployed working state: the U-shaped frame 420 rotates around its pivot axis until it contacts the ground to support the curtain retracting and unfolding assembly 300 and the portable retracting and unfolding support assembly 200; Considering that there are two main types of common screen 3101 structures, one is a bracket type, in which the screen is rolled up on a reel of a metal bracket, and the bottom of the bracket is usually a heavy tripod or fixed base. Although it is highly stable after unfolding, the overall weight is large, and it requires multiple people to carry it when moving, which is especially difficult to push on the rugged ground of the construction site. The other type is a simple hanging type. The screen 3101 itself is light, but it needs to be suspended by fixed objects such as walls and scaffolding on site. Not only is it restricted by the site environment, such as there is nowhere to hang it in open areas, but the height and flatness must be readjusted each time it is unfolded. The slightest shake will easily cause it to tilt, affecting the projection effect. Therefore, in the initial state, the first rotating plate 220 and the second rotating plate 2202 are connected in parallel to the axis of the support column body 100, and are integrally located inside the slide 101. At this time, the entire device can be easily moved and easily relocated at any time. The overall structure of the device is compact, without redundant protruding parts, and is easy for one person to pick up or push and move at any time, solving the problem of traditional bracket-type equipment being difficult to move due to scattered components and large size. In the support state, the first rotating plate 220 and the second rotating plate 2202 are unfolded to form a triangular structure to support the curtain retracting and extending assembly 300. This state is achieved by pulling the first rotating plate 220 downward, so that the first rotating plate 220 moves from position S1 to position S2, and simultaneously drives the curtain 3101 to unfold to both sides, thereby completing the support and positioning of the curtain retracting and extending assembly 300. Simply pulling the first rotating plate 220 downward from S1 to S2 can simultaneously achieve "triangular support formation" and "double-sided unfolding of the curtain 3101" without complicated steps. Compared with the traditional process of separately assembling the bracket and adjusting the curtain 3101, the operation time is greatly shortened. Through the above, one-step operation and multi-effect linkage are achieved, manual intervention is reduced, and the probability of operational errors is lowered. It is especially suitable for scenes with high requirements for operational efficiency, such as construction sites.

[0016] When the equipment is moved to a construction site or other construction environment, the rotational connection between the curtain retracting and extending assembly 300 and the portable retracting and extending support assembly 200 may become loose due to shaking, thereby causing the curtain 3101 to be accidentally unfolded. At the same time, when the support is unfolded, it is necessary to ensure that the curtain retracting and extending assembly 300 can obtain stable support to avoid affecting the use due to insufficient support. Therefore, in the initial state, the inner wall of the U-shaped frame 420 is in contact with the surface of the curtain retracting and extending assembly 300, thereby limiting the rotational connection between the curtain retracting and extending assembly 300 and the portable retracting and extending support assembly 200, thereby preventing the curtain 3101 from being accidentally unfolded due to shaking when the equipment is moved to a construction site or other construction environment. When entering the expanded support state, the U-shaped frame 420 rotates, and its end moves downward, and fits into the ground with its own shape, thereby effectively supporting the curtain retracting and unfolding assembly 300.

[0017] In order to enable the first rotating plate 220 and the second rotating plate 2202 to be rotatably connected and to be divided into the stowed state and the deployed state, it is necessary to further disclose the parts of the portable stowable support assembly 200. Therefore, the portable stowable support assembly 200 includes a first rotating block 210 that slides on the inner wall of the slide groove 101. The first rotating plate 220 is rotatably connected to the surface of the first rotating block 210. The end of the first rotating plate 220 away from the first rotating block 210 is rotatably connected to the second rotator 2201. The inner wall of the second rotator 2201 is rotatably connected to the second rotating plate 2202. The first rotating plate 220 and the second rotating plate 2202 form a linkage rotating structure through the second rotator 2201; The first rotating block 210 is slidably disposed in the upper area of ​​the inner wall of the chute 101 and displaced along the axial direction of the chute 101. The end of the second rotating plate 2202 rotates in the lower area of ​​the inner wall of the chute 101. Initial storage state: The first rotating block 210 is located in the upper area of ​​the inner wall of the chute 101. The first rotating plate 220 and the second rotating plate 2202 are connected to the inside of the chute 101 through the second rotator 2201. The whole is parallel to the axis of the support column body 100. The end of the second rotating plate 2202 rotates in the lower area of ​​the inner wall of the chute 101. The entire assembly is retracted in the chute 101, facilitating the overall movement of the device. The unfolding operation process is as follows: the first rotating block 210 is pushed downward axially along the slide groove 101 to move downward from the upper area. At this time, the first rotating plate 220 rotates outward with the first rotating block 210 as the fulcrum, and at the same time, the second rotating plate 2202 is driven to rotate synchronously through the second rotator 2201 - the second rotating plate 2202 is unfolded with its end as the fixed fulcrum, and finally the first rotating plate 220 and the second rotating plate 2202 form a triangular support structure through the linkage of the second rotator 2201.

[0018] In order to enable the curtain 3101 to be unfolded in conjunction with the rotating rod of the portable retractable support assembly 200, sliders 2101 are fixedly connected to both ends of the first rotating block 210, and the end of the slider 2101 away from the first rotating block 210 is fixedly connected to the first connecting plate 230. A folding flap 240 is rotatably connected to the surface of the first connecting plate 230. The folding flap 240 is rotatably connected to the curtain retractable assembly 300 to cooperate with the rotation of the portable retractable support assembly 200 to realize the unfolding action of the curtain 3101; When the portable folding and extending support assembly 200 is unfolded, the first rotating block 210 slides downward along the slide groove 101, driving the sliders 2101 at both ends to move downward synchronously. The sliders 2101 push the folding flap 240 through the first connecting plate 230. At this time, the folding flap 240 rotates outward with the connection point with the first connecting plate 230 as the axis, and at the same time drives the curtain folding and extending assembly 300 to unfold synchronously. As the rotation angle of the folding flap 240 increases, the curtain 3101 is pulled out from the curtain winding drum 310 and unfolded to both sides until it forms an adaptive unfolding state with the triangular support structure of the portable folding and extending support assembly 200.

[0019] In order to enable the curtain retracting and unfolding assembly 300 to cooperate with the rotation of the folding flap 240 and to unfold, it is necessary to further disclose the parts of the curtain retracting and unfolding assembly 300. Therefore, the end of the folding flap 240 away from the first connecting plate 230 is rotatably connected to the second connecting plate 320, and the end of the second connecting plate 320 away from the folding flap 240 is fixedly connected to the curtain reel 310; Since the two ends of the first rotating block 210 are respectively fixedly connected with the sliders 2101 , there are two curtain reeling drums 310 .

[0020] The inner wall of the curtain reel 310 is provided with a curtain 3101. The two curtain reel 310 can be unfolded outwards synchronously so that the curtain 3101 slides out from the interior of the curtain reel 310 and unfolds. One end of the curtain 3101 is fixed to the reel of the elastic tape measure, and the reel is rotatably connected to the inner wall of the curtain reel-up drum 310, and a coil spring is provided between the reel and the curtain reel-up drum 310. When the curtain 3101 is pulled outward and unfolded, the reel rotates synchronously with the pulling of the curtain 3101, and the coil spring is twisted and stores force. When the pulling external force disappears, the coil spring releases elastic potential energy, driving the reel to rotate in the opposite direction, thereby winding the curtain 3101 back onto the surface of the reel, thereby realizing automatic contraction of the curtain 3101 and storing it inside the curtain reel-up drum 310. (It should be noted that the above-mentioned automatic retraction and unfolding structure is realized by conventional technical means in this field. Its specific structure and working principle are well known to those skilled in the art and will not be repeated here).

[0021] When the two curtain reeling drums 310 move outward synchronously under the linkage action of the folding flap 240 and the second connecting plate 320, the curtain 3101 is pulled out from the inner wall of the curtain reeling drum 310 and unfolded. When the two curtain reeling drums 310 move inward synchronously, the curtain 3101 contracts and is stored in its inner wall under the rewinding force of the curtain reeling drum 310, thereby realizing the extension or extension action of the curtain 3101.

[0022] In order to ensure that the first rotating block 210 can slide and remain on the inner wall of the slide groove 101, a limiting slide rail 102 is provided on the inner wall of the slide groove 101. The surface of the slider 2101 slides with the inner wall of the limiting slide rail 102 to limit the displacement trajectory of the first rotating block 210 when sliding along the inner wall of the slide groove 101. The first rotating block 210 is located in the upper area of ​​the inner wall of the slide groove 101, and the slider 2101 on its surface is correspondingly embedded in the inner wall of the limiting slide rail 102, and the two form an initial sliding fit to limit the lateral displacement of the first rotating block 210 in the slide groove 101.

[0023] In order to ensure that the first rotating plate 220 and the second rotating plate 2202 maintain a triangular state after the first rotating block 210 slides to a suitable position, a buckle positioning groove 103 is opened on the inner wall of the limiting slide rail 102, and a protrusion is elastically slidably provided on the inner wall of the slider 2101; When the first rotating block 210 slides to the preset position, the protrusion can engage with the buckle positioning groove 103 under the action of elastic force to limit the displacement of the first rotating block 210, so that the first rotating plate 220 and the second rotating plate 2202 maintain a triangular support state.

[0024] In order to enable the U-shaped frame 420 to rotate, it is necessary to further disclose the parts of the fixed support assembly 400. Therefore, the fixed support assembly 400 includes a third rotator 410 fixedly connected to the surface of the second rotator 2201, and the inner wall of the third rotator 410 is rotatably connected to the U-shaped frame 420; the U-shaped frame 420 is connected to the second rotator 2201 through the third rotator 410, so that its inner wall is against the surface of the curtain retracting drum 310, limiting the rotational connection between the curtain retracting assembly 300 and the portable retractable support assembly 200, and preventing the curtain 3101 from accidentally unfolding when the equipment moves.

[0025] The bottom of the U-shaped frame 420 and the bottom of the curtain retracting drum 310 are located on the same horizontal plane as the bottom of the support column body 100; when in the unfolded state, the bottom of the U-shaped frame 420, the bottom of the curtain retracting drum 310 and the bottom of the support column body 100 are located on the same horizontal plane, and at the same time support the curtain retracting assembly 300.

[0026] In summary, the workflow of the present invention is: Initial stowed state: The first rotating plate 220 and the second rotating plate 2202 are parallel to the axis of the support column body 100 and are stored in the slide groove 101 as a whole. The two curtain retracting drums 310 of the curtain retracting assembly 300 are in a stowed state, and the curtain 3101 is stored in the retracting drums. The inner wall of the U-shaped frame 420 contacts the surface of the curtain retracting drums 310, restricting the rotation of the curtain retracting assembly 300 and preventing the curtain 3101 from spreading outward during movement. In the unfolded working state: push the third rotator 410 downward to make the slider 2101 slide down along the limiting slide rail 102, drive the first rotating plate 220 to rotate outward with the first rotating block 210 as the fulcrum, and at the same time drive the second rotating plate 2202 to unfold with the lower end of the slide groove 101 as the fulcrum through the second rotator 2201, and finally form a triangular support structure, the protrusion of the slider 2101 is snapped into the buckle positioning groove 103 of the limiting slide rail 102 to fix the support state, and at the same time, when the first rotating block 210 slides down, the slider 2101 pushes the folding flip through the first connecting plate 230. The plate 240 rotates outward, and the folding flap 240 drives the two curtain reel drums 310 to unfold synchronously outward through the second connecting plate 320. The curtain 3101 slides out of the reel drum under the pulling action and unfolds to both sides until it is adapted to the triangular support structure. The U-shaped frame 420 is rotated around the third rotator 410 until the end touches the ground. At this time, the bottom of the U-shaped frame 420, the bottom of the curtain reel drum 310, and the bottom of the support column body 100 are in the same horizontal plane, jointly forming a stable support for the curtain retracting and unfolding assembly 300 and the portable retracting and unfolding support assembly 200. In the storage reset state, the protrusion of the slider 2101 is pressed to disengage the buckle positioning groove 103, and the third rotator 410 is moved upward to rotate the first rotating plate 220 and the second rotating plate 2202 so as to be stored in the sliding groove 101. The folding flap 240 rotates in the opposite direction as the first connecting plate 230 moves upward, driving the curtain reel 310 to retract. The U-shaped frame 420 is rotated in the opposite direction to return it to its initial position in contact with the surface of the curtain reel 310, thereby re-realizing the limit fixation.

[0027] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A green building design device based on BIM technology, comprising a support column body (100), characterized in that: A sliding groove (101) is provided on the surface of the support column body (100), and a portable retractable support assembly (200) is slidably provided on the inner wall of the sliding groove (101); The portable stowable support assembly (200) comprises a hinged first rotating plate (220) and a second rotating plate (2202), which are connected parallel to the axis of the support column body (100) when in the stowed state, and are unfolded to form a stable triangular support structure when in the unfolded state. The surface of the portable retractable support assembly (200) is rotatably connected to the curtain retractable assembly (300) and is used to push the curtain (3101) of the curtain retractable assembly (300) to be simultaneously unfolded to both sides in the unfolded state; The surface of the portable folding and unfolding support assembly (200) is provided with a fixed support assembly (400), and the fixed support assembly (400) includes a rotatable U-shaped frame (420). When in the folded state, the inner surface of the U-shaped frame (420) contacts the surface of the curtain folding and unfolding assembly (300), thereby achieving positional fixation of the curtain (3101). When in the unfolding state, the U-shaped frame (420) rotates around its pivot axis until it contacts the ground, thereby supporting the curtain folding and unfolding assembly (300) and the portable folding and unfolding support assembly (200).

2. The green building design device based on BIM technology according to claim 1 is characterized by: The portable stowage and expansion support assembly (200) comprises a first rotating block (210) sliding on the inner wall of the slide groove (101); a first rotating plate (220) is rotatably connected to the surface of the first rotating block (210); an end of the first rotating plate (220) away from the first rotating block (210) is rotatably connected to a second rotator (2201); and an inner wall of the second rotator (2201) is rotatably connected to the second rotating plate (2202); The first rotating plate (220) and the second rotating plate (2202) form a linked rotating structure via the second rotator (2201).

3. The green building design device based on BIM technology according to claim 2 is characterized by: The first rotating block (210) is slidably arranged in the upper area of ​​the inner wall of the slide groove (101) and displaced along the axial direction of the slide groove (101), and the end of the second rotating plate (2202) rotates in the lower area of ​​the inner wall of the slide groove (101).

4. The green building design device based on BIM technology according to claim 2 is characterized by: Both ends of the first rotating block (210) are fixedly connected to sliders (2101), one end of the slider (2101) away from the first rotating block (210) is fixedly connected to a first connecting plate (230), a folding flap (240) is rotatably connected to the surface of the first connecting plate (230), and the folding flap (240) is rotatably connected to the curtain retracting and unfolding assembly (300) to cooperate with the rotation of the portable retractable support assembly (200) to realize the unfolding action of the curtain (3101).

5. The green building design device based on BIM technology according to claim 4 is characterized in that: One end of the folding flap (240) away from the first connecting plate (230) is rotatably connected to the second connecting plate (320), and one end of the second connecting plate (320) away from the folding flap (240) is fixedly connected to the curtain reel (310).

6. The green building design device based on BIM technology according to claim 5 is characterized by: The inner wall of the curtain reel (310) is provided with a curtain (3101), and the two curtain reeling drums (310) can be unfolded outwards synchronously so that the curtain (3101) slides out from the inside of the curtain reeling drum (310) and unfolds.

7. The green building design device based on BIM technology according to claim 4 is characterized by: The inner wall of the slide groove (101) is provided with a limiting slide rail (102), and the surface of the slider (2101) is slidably engaged with the inner wall of the limiting slide rail (102) to limit the displacement trajectory of the first rotating block (210) when sliding along the inner wall of the slide groove (101).

8. The green building design device based on BIM technology according to claim 7 is characterized by: The inner wall of the position-limiting slide rail (102) is provided with a snap-fit ​​positioning groove (103), and the inner wall of the slider (2101) is provided with a protrusion for elastic sliding.

9. The green building design device based on BIM technology according to claim 2 is characterized by: The fixed support assembly (400) comprises a third rotator (410) fixedly connected to the surface of the second rotator (2201), and the inner wall of the third rotator (410) is rotatably connected to a U-shaped frame (420).

10. The green building design device based on BIM technology according to claim 9, characterized in that: The bottom of the U-shaped frame (420), the bottom of the curtain reel (310), and the bottom of the support column body (100) are located on the same horizontal plane.

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