A method for positioning spatial structural units in complex surface modeling

Abstract

The present invention relates to a method for positioning a spatial structural unit of a complex curved surface modeling, the method being used for non-rigid skeleton installation, the method being based on a jacking device, the jacking device comprising a bottom support, a support plate, and a support column, the lower end of the support column being vertically mounted on the upper end of the bottom support, the upper end of the support column being movably connected to the middle of the lower end of the support plate, and the support plate being capable of deflecting up and down relative to a horizontal plane; a plurality of jacking devices being arranged in a matrix, and the support plates being spliced together to form a support surface; the non-rigid skeleton comprising a plurality of structural units, the structural units being laid one by one on the support surface, and the structural units being connected in sequence to form a mesh topological structure. The present invention provides a support surface for the non-rigid skeleton with the aid of a special jacking device, the non-rigid skeleton being directly laid on the support surface, the non-rigid skeleton finally laid being connected and fixed to the rigid skeleton, the jacking device being removed after the laying is completed, and the installation and positioning of the non-rigid skeleton being completed, thereby reducing the difficulty of construction.

Description

Technical Field

[0001] The present invention relates to the field of curved surface modeling space construction, and in particular to a method for positioning structural units of complex curved surface modeling space. Background Art

[0002] To enhance the visual effect, curved surfaces in architectural decoration are no longer simply spherical or flat, but rather structurally complex. Curved spaces often employ a skeleton-like structure, where a rigid structure is used to construct the desired form based on the design style. Later decorative construction is then performed on the skeleton to complete the curved space.

[0003] For conventional curved surfaces, a rigid skeleton can meet the requirements; however, for more complex curved surface modeling spaces, the surface presents changes, and using rigid materials to build the corresponding skeleton form has the following problems:

[0004] On the one hand, the surface changes irregularly, which increases the difficulty of processing, manufacturing and erecting the skeleton; on the other hand, the stress of rigid materials is relatively large, and the performance requirements of the skeleton materials are relatively high.

[0005] On this basis, a combination of a rigid skeleton and a non-rigid skeleton is proposed. The non-rigid skeleton is used to refine the rigid skeleton on the basis of the rigid skeleton, making the skeleton refined; however, although the non-rigid skeleton can meet the requirements of complex surfaces, there is also a problem that the non-rigid skeleton is difficult to control its shape. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a method for positioning spatial structural units with complex curved surface shapes. With the help of a special jacking device, a support surface is provided for the erection of a non-rigid skeleton. The non-rigid skeleton can be laid directly on the support surface. After laying, the jacking device is removed to complete the installation and positioning of the non-rigid skeleton, thereby reducing the construction difficulty.

[0007] The technical objectives of the present invention are achieved through the following technical solutions:

[0008] A method for positioning spatial structural units of complex curved surface modeling is used for non-rigid skeleton installation. The method is based on a jacking device, which includes a bottom support, a support plate, and a support column. The lower end of the support column is vertically installed on the upper end of the bottom support, and the upper end of the support column is movably connected to the middle part of the lower end of the support plate, and the support plate can be deflected up and down relative to the horizontal plane; several jacking devices are arranged in a matrix, and the support plates are spliced to form a support surface; the non-rigid skeleton includes several structural units, and the structural units are laid one by one on the support surface, and the structural units are sequentially connected to form a mesh topological structure.

[0009] Furthermore, the structural unit includes a first end, a second end, and a connecting portion. The first end and the second end are respectively connected to two ends of the connecting portion. A plurality of connecting pieces are respectively connected to the first end and the second end.

[0010] Furthermore, the method comprises the following steps:

[0011] S1. Construct a surface model using 3D modeling software, draw a projection grid of the surface model on a plane based on the surface model, mark each node position on the projection grid corresponding to the 3D coordinate on the surface model, and the nodes on the projection grid correspond to the corner positions of the support plate;

[0012] S2. Drawing a construction grid on the ground according to the projected grid map, and placing the support device in the grid of the construction grid;

[0013] S3. Using a total station to measure the coordinates of the corners of the support plate, adjust the position of the jacking device in the grid and the angle of the support plate until the corner coordinates of the support plate meet the three-dimensional coordinates of the nodes on the surface model at that position;

[0014] S4, repeating the operation S3 to complete the positioning of the jacking device so that the support plates on the jacking devices at adjacent positions are adjacent to form a support surface;

[0015] S5. Lay the structural units on the support surface so that the first end or the second end is supported on the support surface; the first ends of two adjacent structural units are connected by a connecting piece, and the second ends of two adjacent structural units are connected by a connecting piece; several structural units are connected to form a double-layer mesh structure.

[0016] Furthermore, the support column is retractable, and a positioning support is provided at the upper end of the bottom support. The lower end of the positioning support is vertically fixed to the bottom support, and the upper end of the positioning support is a free end. The positioning support is retractable.

[0017] Furthermore, a bottom support of appropriate height is selected to ensure that the height of the support plate can reach the height of the node at the corresponding position. The plane coordinates of the corners of the support plate are measured with the help of a total station, and the position of the bottom support in the grid of the construction grid is adjusted; then the vertical coordinates of the corners of the support plate are measured with the total station to complete the angle and height adjustment of the support plate.

[0018] Furthermore, rollers are installed on the bottom of the bottom support.

[0019] Furthermore, the bottom support height is adjustable.

[0020] Furthermore, the bottom support includes a plurality of support units, and the support units are stacked.

[0021] Compared with the existing technology, the beneficial effect of the present invention is that a special jacking device is used to provide a support surface for the erection of a non-rigid skeleton, and the non-rigid skeleton can be laid directly on the support surface. The finally laid non-rigid skeleton is connected and fixed to the rigid skeleton. After the laying is completed, the jacking device is removed to complete the installation and positioning of the non-rigid skeleton, reducing the construction difficulty; the support surface can also be used as a construction platform for decorative operations on the skeleton, which facilitates construction operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the jacking device of the present invention.

[0023] Figure 2 It is a schematic diagram of the laying of the spatial structure units in the present invention.

[0024] Figure 3 It is a structural diagram of the spatial structural unit in the present invention.

[0025] Figure 4 It is a schematic diagram of the support surface structure in the present invention.

[0026] In the figure, 1. bottom support; 2. moving wheel; 3. support column; 4. positioning support; 5. spherical shaft; 6. support plate; 7. support unit; 8. limiting hole; 9. limiting pin; 10. node; 11. connecting part; 12. first end; 13. second end; 14. reserved groove; 15. connecting plate; 16. connecting head; 17. cover. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described below in conjunction with specific embodiments:

[0028] A method for positioning a complex curved surface modeling space structural unit is used for non-rigid skeleton installation. The non-rigid skeleton includes several structural units. Figure 3 As shown, it includes a first end portion 12, a second end portion 13, and a connecting portion 11. The first end portion 12 and the second end portion 13 are respectively connected to the two ends of the connecting portion 11. The first end portion 12 and the second end portion 13 are respectively connected to a plurality of connecting pieces. When positioning the structural unit, the jacking device is used for support positioning. The jacking device is as shown in FIG. Figure 1 As shown, it includes a bottom support 1, a support plate 6, and a support column 3. The lower end of the support column 3 is vertically installed on the upper end of the bottom support 1, and the upper end of the support column 3 is movably connected to the middle of the lower end of the support plate 6. The support plate 6 can be deflected up and down relative to the horizontal plane; a plurality of jacking devices are arranged in a matrix, and the support plates 6 are spliced to form a support surface, such as Figure 4 As shown; the non-rigid skeleton includes several structural units, such as Figure 2 As shown, the structural units are laid one by one on the supporting surface, and the structural units are connected in sequence to form a mesh topological structure.

[0029] Specifically, structural units such as Figure 3 As shown, the connecting part 11 adopts a circular tube structure, the first end 12 and the second end 13 are integrated with the connecting part 11, and a reserved groove 14 is respectively provided at the first end 12 and the second end 13, and the reserved groove 14 is provided with an opening at the end near the connecting part; the connecting piece includes a connecting plate 15 and a connecting head 16, and the connecting head 16 is cylindrical, and the connecting head 16 is installed at the end of the connecting plate 15; when in use, the end with the connecting head 16 is inserted into the interior of the connecting part 11 from the opening of the reserved groove 14, the connecting plate 15 passes through the reserved groove 14, and the connecting head 16 cannot pass through the reserved groove 14; in order to fix the connecting piece, a cover 17 is respectively provided at the first end 12 and the second end 13, and the cover 17 is installed on the first end 12 and the second end 13 by screwing. After the cover 17 is installed, the opening of the reserved groove 14 is sealed.

[0030] Specifically, the upper end of the jacking device support column 3 is connected to the spherical shaft 5, and the support column 3 is connected to the support plate 6 through the spherical shaft 5. The support plate 6 can be adjusted in angle relative to the support column 3. A number of positioning supports 4 are set on the periphery of the support column 3. Taking four positioning supports 4 as an example, the lower ends of the four positioning supports 4 are vertically installed on the upper end of the bottom support 1. The upper ends of the positioning supports 4 are free ends. The length of the positioning supports 4 can be adjusted. Adjusting the length of the positioning supports 4 allows the free ends of the positioning supports 4 to abut against the support plate 6 from below, thereby achieving angular positioning of the support plate 6. The support plate 6 is a polygonal flat plate, such as a quadrilateral or triangle. Several jacking devices are arranged in an array, and finally the support plates 6 are spliced together to form a support surface.

[0031] The length of the support column 3 is adjustable. In this embodiment, the support column includes two sections, which are connected by a socket joint. Both sections are provided with a limit hole 8. The lower support column is connected to and fixed to the bottom support, and the upper support column is connected to and fixed to the spherical shaft 5. The upper support column can be moved up or down relative to the lower support column to achieve height adjustment. After the adjustment is completed, a limit pin 9 can be inserted into the limit hole 8 to temporarily fix the position of the upper and lower support columns. Similarly, the positioning support can also include two sections, which are distributed up and down. The two sections of the positioning support are provided with a socket joint. The lower positioning support is connected and fixed to the upper end of the bottom support. The upper positioning support can be moved up or down relative to the lower positioning support. The two sections of the positioning support are also provided with a limit hole 8. The limit pin 9 is inserted into the limit hole 8. The relative position of the upper and lower limit columns is temporarily fixed by inserting the limit pin 9 into the limit hole 8. Of course, the positioning support and the support column can also use electric telescopic motors, hydraulic cylinders, cylinders, etc., but the relative cost will be increased.

[0032] The bottom support 1 is composed of several sections of support units 7, such as Figure 3As shown, it includes at least one support unit 7, such as a steel frame or a scaffolding; the support units 7 are stacked as needed, and the support units are connected and fixed to form a whole; in order to facilitate movement, moving wheels 2 can also be installed under the bottom support, and the bottom support can be directly pushed to adjust the horizontal position during use.

[0033] The positioning process includes the following steps:

[0034] S1. Before positioning the lifting device, a three-dimensional surface model of the surface modeling space is established in a three-dimensional modeling software. The three-dimensional modeling software, such as Rhino (Rhino Software) and SketchUP (SketchUp), divides the three-dimensional surface model into several grid areas, and forms nodes between the grid areas. The three-dimensional coordinates (X, Y, Z) of each node position are determined in the three-dimensional modeling software; a projection grid diagram of the three-dimensional surface model on the plane is drawn according to the node projection of the three-dimensional surface model. The grid nodes of the projection grid diagram correspond to the nodes of the three-dimensional surface model, and the three-dimensional coordinates of the nodes of the surface model are marked on the projection grid diagram; the coordinates of the nodes are the coordinates of the corner positions of the final support plate. Taking a quadrilateral support plate as an example, there is a node at each corner of the quadrilateral support plate, and each node position has a determined three-dimensional coordinate (x1, y1, z1), (x2, y2, z2), (x3, y3, z3), (x4, y4, z4);

[0035] S2. Draw a construction grid on the ground based on the projected grid diagram, select the appropriate bottom support height, and ensure that the height of the support plate can reach the height of the node at the corresponding position. The height of the support plate can be further adjusted with the support column 3, and the corresponding jacking device is initially moved into the grid;

[0036] S3. Adjust each jacking device horizontally according to the plane coordinates (X, Y) of the node; use a total station to measure the horizontal coordinates of the four corners of the support plate, and move the bottom support of the jacking device so that the horizontal coordinates of the four corners of the support plate meet the plane coordinates of the node at the grid position.

[0037] After the horizontal position adjustment is completed, adjust the height and angle of the support plate:

[0038] Adjust the heights of the four corners of the support plate one by one, measure the height coordinates of a corner with the help of a total station, and the height and angle of the support plate can be adjusted freely. Keep adjusting the coordinates of the corner until the longitudinal coordinates of the node corresponding to the corner are met, and then adjust the height of the positioning support close to the position so that the upper end of the positioning support is against the lower end face of the support plate, and then insert the limit pin to fix the positioning support at that position; then determine the heights of the other corners in the same way, and after the heights of the four corners are determined, the angle adjustment of the support plate is completed; when the height adjustment of the four corners of the support plate is completed, limit the height of the support column by the limit pin to complete the positioning of a jacking device.

[0039] S4. Complete the positioning of the remaining jacking devices according to the above method, and the support plates are adjacent to each other to form a support surface.

[0040] S5. Lay the structural units on the support surface so that the first end or the second end is supported on the support surface; the first ends of two adjacent structural units are connected by a connecting piece, and the second ends of two adjacent structural units are connected by a connecting piece; several structural units are connected to form a double-layer mesh structure.

[0041] This embodiment is only a further explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A method for positioning a complex curved surface spatial structure unit, which is used for non-rigid skeleton installation, characterized in that: The lifting mechanism is a pair of fixedly mounted on two ends of the support frame, and the supporting ribs are connected along the centre line of the bottom bracket, the supporting ribs are connected along the centre line of the bottom bracket, and the supporting ribs are connected along the centre line of the bottom bracket. S1. Construct a surface model using 3D modeling software, draw a projection grid of the surface model on a plane based on the surface model, mark each node position on the projection grid corresponding to the 3D coordinate on the surface model, and the nodes on the projection grid correspond to the corner positions of the support plate; S2. Drawing a construction grid on the ground according to the projected grid map, and placing the support device in the grid of the construction grid; S3. Using a total station to measure the coordinates of the corners of the support plate, adjust the position of the jacking device in the grid and the angle of the support plate until the corner coordinates of the support plate meet the three-dimensional coordinates of the nodes on the corner position surface model; S4, repeating the operation S3 to complete the positioning of the jacking device so that the support plates on the jacking devices at adjacent positions are adjacent to form a support surface; S5. Lay the structural units on the support surface so that the first end or the second end is supported on the support surface; the first ends of two adjacent structural units are connected by a connecting piece, and the second ends of two adjacent structural units are connected by a connecting piece; several structural units are connected to form a double-layer mesh structure.

2. A method for positioning a complex curved surface modeling spatial structure unit according to claim 1, characterized in that: Select a bottom support of appropriate height to ensure that the height of the support plate can reach the height of the node at the corresponding position. Use the total station to measure the plane coordinates of the corners of the support plate and adjust the position of the bottom support in the grid of the construction grid; then use the total station to measure the vertical coordinates of the corners of the support plate to complete the angle and height adjustment of the support plate.

3. The method for positioning a complex curved surface modeling spatial structure unit according to claim 1, characterized in that: The bottom of the bottom support is also equipped with rollers.

4. The method for positioning a complex curved surface modeling spatial structure unit according to claim 1, characterized in that: The bottom support is height-adjustable.

5. The method for positioning a complex curved surface modeling spatial structure unit according to claim 4, characterized in that: The bottom support includes a plurality of support units, and the support units are stacked.

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