Inflatable special-shaped structure and manufacturing method thereof

Abstract

The invention provides an inflatable special-shaped structure and a manufacturing method thereof, relates to the technical field of inflatable structures, and is applied to exhibition halls, banquet halls, landscape exhibition and other scenes. The inflatable special-shaped structure comprises at least one gas rib and at least one gas wall, the gas wall is arranged between the gas ribs, the gas wall comprises gas wall diaphragms and at least one tensioning piece, the gas wall diaphragms define the outer wall of the gas wall, the tensioning piece is arranged between every two opposite gas wall diaphragms, and the tensioning pieces are used for closing the distance between the two gas wall diaphragms. A concave area is formed on the outer side of the air wall; the gas rib and / or the gas wall are / is provided with an inflation part used for inflation, and when the gas rib or the gas wall is provided with the inflation part, the gas rib is communicated with the gas wall. By arranging the air ribs, the air wall and the tensioning pieces arranged in the air wall, the air wall has the advantages of being high in wind pressure resistance and bearing capacity, high in strength of special-shaped parts, diversified in shape, high in attractiveness, rapid in installation and forming and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of inflatable structures, and in particular to an inflatable special-shaped structure and a manufacturing method thereof. The inflatable structure has the advantages of strong plasticity, high aesthetics, high structural reliability, and few surface wrinkles. It is used in scenes such as exhibition halls, banquet halls, and landscape exhibitions. Background Art

[0002] At present, inflatable structures (such as inflatable pop-up stores, inflatable landscapes for exhibitions, etc.) have gradually replaced traditional support structures (such as rigid sheds, support landscapes, etc.) due to their superior installation convenience and good ability to withstand harsh environments (wind, rain, snow, etc.).

[0003] Among them, the arched inflatable structure is the most widely used. The arched inflatable structure includes air ribs for support, a protective structure (such as a cloth surface or membrane surface) covering the air ribs, and an intelligent inflation system. However, the existing arched inflatable structure still has the following disadvantages:

[0004] 1. Limited structural shape: The current market technology generally adopts the form of integrated inflation of supporting gas ribs and maintenance structures, which bear the force together. This leads to inconsistent size and area at the irregular cross-section, inconsistent structural force, wrinkled appearance, affecting the aesthetics, and some structures with large amplitude changes cannot be realized;

[0005] 2. Lack of aesthetics: The above-mentioned arched inflatable structure can only be designed into a regular structure. The transition between the maintenance structure and the supporting air ribs is not smooth, and the product lacks appearance design features.

[0006] 3. Weak strength in irregularly shaped areas: Irregularly shaped structures (such as intersections of curved surfaces and corners) are prone to stress concentration after inflation, leading to local deformation or collapse. Existing technologies have difficulty evenly distributing air pressure in complex geometric shapes, especially at crescent-shaped and multi-curved intersections, where "soft corners" are prone to occur, making it impossible to achieve a shape with distinct corners or arcs.

[0007] 4. Limited wind pressure resistance and load-bearing capacity: Due to the uneven stress on the structure, it is prone to shaking or even tearing under strong winds or snow loads;

[0008] 5. Installation and molding are slow: the above-mentioned arched inflatable structure cannot be directly molded after inflation, and the installation operation steps are more.

[0009] In response to the above technical problems, there is an urgent need to research an inflatable special-shaped structure with high plasticity in shape, strong resistance to wind and snow, high aesthetics, and fast installation and molding. Summary of the Invention

[0010] In response to the above technical problems, the present invention proposes an inflatable special-shaped structure, in which the air ribs and the maintenance air wall are sealed and connected. Both are inflatable, have fast molding and high strength, and the air wall itself and the air wall and the air ribs form an inward-converging arc, which has a coordinated and beautiful appearance.

[0011] In addition, the present invention also provides a method for manufacturing inflatable special-shaped structures, which is a top-down manufacturing method. First, a three-dimensional model is established, and then it is split and unfolded to obtain a two-dimensional unfolded graphic of each component. The diaphragm is cut based on the two-dimensional unfolded graphic, and then the diaphragm is welded according to the marking, and the inflation port is processed to form the structure. The cutting is accurate and efficient.

[0012] The core technical solution of the inflatable special-shaped structure of the first embodiment of the present invention is as follows:

[0013] The inflatable profiled structure includes at least one air rib and at least one air wall.

[0014] Air ribs: When there are more than two air ribs, they include vertical air ribs and horizontal air ribs. The vertical air ribs are used to support the air wall, and the horizontal air ribs are used to connect the vertical air ribs to achieve a supporting and stable effect. The horizontal air ribs are provided with arched portions, and the size of the vertical air ribs gradually decreases towards the arched portion, forming an appearance that is high at both ends and gradually decreases in height towards the inside. When there is only one air rib, it includes special-shaped air ribs (for example, special-shaped air ribs connected at both ends, or special-shaped air ribs disconnected at both ends). The angle of the special-shaped air ribs can be inclined or vertical.

[0015] Air walls: These are located between adjacent upright air ribs and are circumferentially surrounded by both upright and horizontal air ribs. The air walls include an air wall membrane defining the outer wall, and at least one tensioning sheet located between two opposing air wall membranes. The tensioning sheet is used to close the distance between the two air wall membranes to form a concave area on the outer side of the air wall (forming a brick-lattice-like structure when viewed from the outside). Alternatively, the air walls may be located between and surrounded by special-shaped air ribs.

[0016] Among them, the air rib and / or the air wall is provided with an inflation part for inflation (that is, the air rib is provided with an inflation part / the air wall is provided with an inflation part / the air rib and the air wall are both provided with an inflation part). When only the air rib is provided with an inflation part or only the air wall is provided with an inflation part, the air rib and the air wall are connected.

[0017] Furthermore, the inflatable special-shaped structure also includes the following optimization solutions:

[0018] Strengthened connection structure between air ribs and air walls:

[0019] The air wall also includes a first connecting piece and a second connecting piece. One end of the first connecting piece is connected to the outer wall of the air rib and the other end is connected to the inner side of the air wall membrane. One end of the second connecting piece is connected to the outer wall of the air rib and the other end is connected to the outer side of the air wall membrane. The second connecting piece is located outside the first connecting piece and is used to cover the seam between the air wall membrane and the air rib, so that the air wall membrane and the air rib form an inward-converging arc.

[0020] The air wall diaphragms that form the same group of air walls strengthen the connection structure:

[0021] 1. Both sides of the tensioning sheet are provided with arc-shaped edges that are retracted toward the center. The arc-shaped edges increase the length of the sides of the tensioning sheet. When the two ends of the tensioning sheet are subjected to a large tensile force, the two sides of the tensioning sheet still have room to extend in the direction of the tensile force to prevent tearing.

[0022] 2. The air wall also includes a third connecting piece. One end of the third connecting piece is formed by two extension pieces extending outward from the end of the third connecting piece. The other end of the third connecting piece is formed by two parallel clips. The extension pieces are attached to the inner side of the air wall diaphragm (by gluing or welding). The tensioning piece is attached between the two clips (by gluing, welding, or sewing).

[0023] 3. The air wall also includes a reinforcing diaphragm. The reinforcing diaphragm is arranged on the inner side of the air wall diaphragm (by gluing or welding) and covers the extension piece.

[0024] The core technical solution of the manufacturing method for an inflatable special-shaped structure according to the second embodiment of the present invention includes the following steps:

[0025] Model design and cutting:

[0026] S1. Establish a three-dimensional model of the inflatable special-shaped structure, obtain a two-dimensional unfolded diagram based on the three-dimensional model, and cut out an air rib diaphragm, an air wall diaphragm, a first connecting piece, a second connecting piece, a third connecting piece, a tensioning piece, and a reinforcing diaphragm from the membrane material according to the two-dimensional unfolded model;

[0027] Gas rib welding:

[0028] S2. Welding the multiple air rib diaphragms into cylindrical air rib components, then welding the multiple cylindrical air rib components into vertical air ribs and horizontal air ribs, arranging the multiple vertical air ribs, placing the horizontal air ribs at the bottom of the vertical air ribs, and then connecting the multiple vertical air ribs with the horizontal air ribs;

[0029] Gas wall welding:

[0030] S3. Weld a first connecting piece to the inner side of the edge of the air wall diaphragm, a second connecting piece to the outer side of the edge of the air wall diaphragm, and a third connecting piece to the inner side of the air wall diaphragm. Divide multiple air wall diaphragms into groups of two each. Take a tensioning piece and connect it to the third connecting piece on the air wall diaphragms in the same group by welding or sewing to form multiple groups of air walls.

[0031] Assembly of air wall and air rib:

[0032] S4. Placing the air wall between adjacent upright air ribs, welding a first connecting piece to the outer wall of the upright air ribs and / or the horizontal air ribs, and welding a second connecting piece to the outer wall of the upright air ribs and / or the horizontal air ribs and covering the first connecting piece;

[0033] Inflatable port processing:

[0034] S5. Open a through hole on the air wall and / or air rib, and then install an air valve on the through hole.

[0035] Furthermore, the production method also includes the following optimization steps:

[0036] Cutting optimization:

[0037] S10, based on the three-dimensional model, adding a first mark at the connection between the air rib and the air wall, and splitting along the first mark to obtain an air rib model and an air wall model;

[0038] S11, adding a second mark on the gas rib model, unfolding along the second mark to obtain a two-dimensional unfolded image of the gas rib diaphragm, adding a third mark on the two-dimensional unfolded image of the gas rib diaphragm, and dividing the two-dimensional unfolded image of the gas rib into a plurality of pre-cut gas rib diaphragm plane images along the third mark;

[0039] S12. Add a fourth mark on the air wall model for recording the connection positions of the first connecting piece, the second connecting piece, the third connecting piece, the tensioning piece, and the reinforcing membrane. Split and unfold the air wall model along the fourth mark to obtain a pre-cut first connecting piece plane graphic, a pre-cut second connecting piece plane graphic, a pre-cut third connecting piece plane graphic, a pre-cut reinforcing membrane plane graphic, a pre-cut tensioning piece plane graphic, and a two-dimensional unfolded air wall membrane graphic. Add a fifth mark on the two-dimensional unfolded air wall membrane graphic, and split the two-dimensional unfolded air wall membrane graphic into multiple pre-cut air wall membrane plane graphics along the fifth mark.

[0040] S13, importing the pre-cut air rib diaphragm plane pattern, the pre-cut first connecting piece plane pattern, the pre-cut second connecting piece plane pattern, the pre-cut third connecting piece plane pattern, the pre-cut reinforcing diaphragm plane pattern, the pre-cut tensioning piece plane pattern, and the pre-cut air wall diaphragm plane pattern into a CNC machine tool control module, and automatically cutting out the air rib diaphragm, the air wall diaphragm, the first connecting piece, the second connecting piece, the third connecting piece, the tensioning piece, and the reinforcing diaphragm;

[0041] S130. Based on the pre-cut air rib diaphragm plane graphic, the pre-cut first connecting piece plane graphic, the pre-cut second connecting piece plane graphic, the pre-cut third connecting piece plane graphic, the pre-cut reinforcing diaphragm plane graphic, the pre-cut tensioning piece plane graphic, and the pre-cut air wall diaphragm plane graphic, a compensation calculation area is added to the pre-welding position of the plane graphic. The compensation calculation area includes heat shrinkage compensation, tensile stress compensation, and overlap width compensation.

[0042] By adopting the above technical solution, the present invention achieves the following beneficial effects:

[0043] 1. Strong wind pressure resistance and load-bearing capacity, high strength of special-shaped parts: the upright air ribs support the air wall, and the horizontal air ribs stabilize the upright air ribs. The air ribs composed of the upright air ribs and the horizontal air ribs have good support and high strength. The air wall is arranged between the upright air ribs and is circumferentially surrounded by the upright air ribs and the horizontal air ribs. The air wall, the upright air ribs and the horizontal air ribs are all sealed (connected by the first connecting piece and the second connecting piece by gluing, welding, etc.). The air wall and the air ribs form an integral structure. When the air wall and / or air ribs are subjected to external force, there will be no relative displacement between the two. The first connecting piece and the second connecting piece can prevent the tension on the air wall and / or air ribs from forming stress concentration. In addition, a tensioning piece for tightening the air wall diaphragm is provided inside the air wall, which further improves the air wall's anti-deformation strength.

[0044] 2. Diverse shapes and high aesthetics: The air ribs and air walls are connected by a first connecting piece and a second connecting piece. The second connecting piece fills the gap between the air ribs and the air wall and covers the first connecting piece, so that a smooth transition zone is formed between the air ribs and the air wall. Under the action of the tensioning piece, the air wall forms a brick grid structure on its outside. When the inflatable special-shaped structure is inflated, the air ribs expand to form a hill-like protrusion. The same applies to the air wall. Combined with the brick grid on the outside of the air wall, a profiling structure similar to an arch bridge is formed, which has a beautiful appearance and high recognition.

[0045] 3. Quick installation and shaping: The air ribs and air walls are an integral structure. They can be quickly shaped by inflating the air ribs and / or air walls without the need for additional assembly operations. If used outdoors, only fixing parts (ground nails, etc.) need to be added to the horizontal air ribs.

[0046] 4. High production precision and low consumables: Top-down design (first designing a 3D model, then obtaining a 2D unfolded pattern based on the 3D model, and cutting the membrane according to the 2D unfolded pattern, precise cutting and reduced consumables. Among them, the 2D unfolded pattern also further designs overlap compensation, heat shrinkage compensation and tensile stress compensation for the pre-cut membrane, so that the membrane is assembled with higher precision, the finished product has fewer wrinkles and is more beautiful) can improve the efficiency of membrane cutting and assembly and reduce consumables during cutting.

[0047] In summary, the present invention solves the core defects of existing inflatable structures, optimizes the design in terms of surface strength, aesthetics, installation speed and production, and has significant technological progress and practical value.

[0048] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a schematic structural diagram of an inflatable special-shaped structure according to an embodiment of the present invention;

[0050] Figure 2 yes Figure 1 A schematic structural diagram of the inflatable special-shaped structure from another perspective is shown;

[0051] Figure 3 yes Figure 1 Schematic diagram of the diaphragm between the two ends of the upright air rib of the inflatable special-shaped structure shown;

[0052] Figure 4 yes Figure 1 Schematic diagram of the diaphragm at the end of the upright air rib of the inflatable special-shaped structure shown;

[0053] Figure 5 yes Figure 1 The diagram of the diaphragm of the inflatable special-shaped structure shown is a schematic diagram of the horizontal air rib located at the connection with the vertical air rib;

[0054] Figure 6 yes Figure 1 A schematic diagram of a section of an upright gas rib or a horizontal gas rib of an inflatable special-shaped structure shown;

[0055] Figure 7 yes Figure 1 A schematic diagram of a section of air ribs at the connection between the upright air ribs and the horizontal air ribs of the inflatable special-shaped structure shown;

[0056] Figure 8 yes Figure 1 Schematic diagram of the membrane of the inflatable special-shaped air wall shown;

[0057] Figure 9 yes Figure 1 Schematic diagram of the membrane of the inflatable special-shaped air wall tensioning sheet shown;

[0058] Figure 10 yes Figure 1 A cross-sectional view of the connection between the air rib and the air wall of the inflatable special-shaped structure shown;

[0059] Figure 11 yes Figure 10A schematic structural diagram of the third connecting piece in the inflatable special-shaped structure shown;

[0060] Figure 12 is a flowchart of the steps of the first part of the manufacturing method of an embodiment of the present invention;

[0061] Figure 13 It is a flow chart of the steps of the second part of the manufacturing method of an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] 1. Air rib; 10. Vertical air rib; 11. Horizontal air rib; 12. Arched part; 13. Air rib diaphragm;

[0063] 2. Air wall; 20. Air wall diaphragm; 21. Tensioning piece; 22. Reinforcement diaphragm; 23. First connecting piece; 24. Second connecting piece; 25. Third connecting piece; 26. Extension piece; 28. Clamp. DETAILED DESCRIPTION

[0064] The technical solutions of the present invention will be described clearly and completely below with reference to the accompanying drawings and specific embodiments. It is obvious that the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0065] Attachment Figure 1 To the attached Figure 11 An inflatable special-shaped structure according to an embodiment of the first aspect of the present invention is described.

[0066] Example 1: This specific example is an inflatable special-shaped structure used in exhibition venues.

[0067] 1. Gas rib:

[0068] Reference Figure 1 and Figure 2 As shown, the inflatable special-shaped structure includes 14 air ribs 1, including 12 upright air ribs 10 and 2 horizontal air ribs 11. The 12 upright air ribs 10 are placed vertically and side by side, and the two horizontal air ribs 11 are set at the bottom of the upright air ribs 10. The upright air ribs 10 provide support for the air wall 2. The horizontal air ribs 11 make the support of the upright air ribs 10 more stable.

[0069] Reference Figure 1 and Figure 2 The horizontal air ribs 11 also have an arch, or arched portion 12. As the vertical air ribs 10 increase in size away from the arched portion 12, this design reduces the wind-exposed area of ​​the inflatable, contoured structure. This also makes the product more recognizable and aesthetically pleasing.

[0070] Reference Figures 3 to 5 As shown, the upright air ribs 10 and the horizontal air ribs 11 are both composed of a plurality of air rib diaphragms 13, and the air rib diaphragms 13 have connection marks, which include position marks for recording the air rib diaphragms 13 being spliced ​​into the upright air ribs 10 and the horizontal air ribs 11 and position marks for recording the vertical air ribs 10 and the horizontal air ribs 11 being spliced ​​with each other.

[0071] Reference Figure 4 As shown, for the upright air rib 10, the air rib diaphragms 13 thereof have the following characteristics: except for the air rib diaphragms 13 at both ends having outer arc-shaped edges extending outward on both sides, the closer the air rib diaphragm 13 is to the center of the arch, the larger the curvature of its outer arc-shaped edge is. After the two ends of this type of air rib diaphragm 13 are welded together, a shape as shown in FIG. Figure 6 The structure is shown in the figure as the expanded form after inflation. The air rib diaphragm 13 at both ends has a gap. After the two ends of this type of air rib diaphragm 13 are welded together, a gap is formed. Figure 7 The structure of the balloon (the figure shows the expanded form after inflation). Figure 6 and Figure 7 The structure is welded into upright gas ribs 10, which can effectively avoid the generation of wrinkles and facilitate processing. The upright gas ribs 10 after welding have a smooth surface and are evenly stressed, and are not prone to stress concentration.

[0072] Reference Figure 5 As shown, for the horizontal air rib 11, its air rib diaphragm 13 not only has the characteristics and corresponding advantages of the air rib diaphragm 13 of the upright air rib 10, but is also provided with a mark for cutting the connecting port, which facilitates the subsequent splicing of the upright air rib 10 and the horizontal air rib 11.

[0073] It should be noted that, in some embodiments, the size of the air rib diaphragm 13 can be designed according to actual production requirements to obtain air ribs 1 with different curvatures.

[0074] It is understandable that the air rib diaphragm 13 is any one or more combinations of PVC-coated polyester fabric, PTFE glass fiber, ETFE membrane flap, etc.

[0075] It should be noted that, in some embodiments, the air ribs 1 may also include inclined air ribs (the inclined air ribs and the horizontal air ribs 11 have a certain angle). The structure of the inclined air ribs is the same as that of the upright air ribs 10. The connection method thereof can refer to the connection method between the upright air ribs 10 and the air wall and the horizontal air ribs 11, which will not be repeated here. In addition, the air ribs 1 can be provided with upright air ribs 10, inclined air ribs and horizontal air ribs 11 at the same time. For example, the two ends of the inflatable special-shaped structure are inclined air ribs, and the upright air ribs 10 are arranged between the inclined air ribs at both ends. The horizontal air ribs 11 connect the inclined air ribs and the upright air ribs 10, and the air wall is surrounded by the inclined air ribs, the upright air ribs 10 and the horizontal air ribs 11.

[0076] It should be noted that, in some embodiments, the air rib 1 may also include one horizontal air rib 11, two upright air ribs 10 (or two inclined air ribs) and one air wall, wherein the two upright air ribs 10 are located at both ends of the horizontal air rib 11, and a whole large air wall is surrounded by the upright air ribs 10 and the horizontal air ribs 11.

[0077] 2. Gas wall:

[0078] Reference Figure 1 and Figure 2 As shown, the inflatable special-shaped structure includes eleven air walls 2, which are positioned between adjacent upright air ribs 10 and circumferentially surrounded by the upright air ribs 10 and the transverse air ribs 11. The air walls 2 are sealed and connected to the air ribs 1, forming a monolithic structure. Both the air walls 2 and the air ribs 1 are provided with an inflation portion, and the upright air ribs 10 and the transverse air ribs 11 are independently inflated. This prevents pressure imbalances at different locations during inflation and reduces wrinkles after inflation.

[0079] Reference Figure 3 and Figure 8 As shown, the air wall 2 includes a plurality of air wall membranes 20, and two air wall membranes 20 constitute a group of air walls 2. The air wall membranes 20 are designed according to the curvature of the inflatable special-shaped structure.

[0080] Reference Figure 9 and Figure 10 As shown, the air wall 2 also includes a first connecting piece 23, a second connecting piece 24, a third connecting piece 25, a reinforcing diaphragm 22, and a tensioning piece 21. The first connecting piece 23 is welded to the inner side of the edge of the air wall diaphragm 20, and the second connecting piece 24 is welded to the outer side of the edge of the air wall diaphragm 20. The first connecting piece 23 and the second connecting piece 24 are both connected to the outer wall of the air rib 1, and the second connecting piece 24 is located outside the first connecting piece 23. When the air wall 2 is connected to the air rib 1 through the first connecting piece 23 and the second connecting piece 24, the second connecting piece 24 covers the first connecting piece 23 to seal the joint between the air wall 2 and the air rib 1. The connection between the air wall 2 and the air rib 1 is smooth, and after the air wall 2 and the air rib 1 are inflated, there is a certain curvature between the two, which is more aesthetically pleasing. The third connecting piece 25 and the reinforcing diaphragm 22 are both welded to the inner side of the air wall diaphragm 20. The reinforcing diaphragm 22 is used to cover the third connecting piece 25 to increase the connection strength of the third connecting piece 25. The two ends of the tensioning piece 21 are respectively connected to the third connecting pieces 25 on the air wall membranes 20 on both sides to gather the air wall membranes 20 so that an inward-retracted groove is formed on the outer side of the air wall membranes 20 .

[0081] It is understood that the first connecting piece 23 is a small-sized diaphragm, arranged at intervals, and the second connecting piece 24 is a large-sized diaphragm, arranged continuously. In some embodiments, the first connecting piece 23 can also be a large-sized diaphragm, arranged continuously, and can be designed according to actual production needs.

[0082] Reference Figure 11 As shown, one end of the third connecting piece 25 is formed by two extension pieces 26 extending outward from the end of the third connecting piece 25. The other end of the third connecting piece 25 is formed by two parallel clips 28. During assembly, the two extension pieces 26 are spread out in opposite directions and then welded to the air wall membrane 20. After the extension pieces 26 of the third connecting piece 25 are welded at one end, the third connecting piece 25 is reinforced with a reinforcing membrane 22. At one end of the clip 28, a tensioning piece 21 is sandwiched between the two clips 28 and then sewn (or welded) together. The tensioning piece 21 and the clip 28 may also be equipped with reinforcing components to strengthen the connection between them.

[0083] Reference Figures 8 to 10 As shown, the air wall membrane 20 also has connection marks, which include position marks for recording the first connection piece 23 , the second connection piece 24 , the third connection piece 25 , the reinforcement membrane 22 and the tensioning piece 21 .

[0084] Reference Figure 9 and Figure 10 The tensioning sheet 21 is provided with curved edges on both sides, which converge inward toward the center. These curved edges increase the length of the tensioning sheet 21. When tensioning sheet 21 is subjected to tension at both ends, the curved edges allow for greater deformation, preventing the tensioning sheet 21 from tearing under high tension, further increasing the strength of the air wall 2.

[0085] It should be noted that the air wall diaphragm 20, the first connecting piece 23, the second connecting piece 24, the third connecting piece 25, the reinforcing diaphragm 22 and the tensioning piece 21 are any one or more combinations of PVC-coated polyester fabric, PTFE glass fiber, ETFE membrane petals, etc.

[0086] Attachment Figure 12 and attached Figure 13 The manufacturing method of the embodiment of the second aspect of the present invention is described.

[0087] Example 2: This specific example is a method for manufacturing an inflatable special-shaped structure used in exhibition venues.

[0088] The production method includes the steps of 3D modeling, model analysis, conversion of 3D data into 2D data, compensation calibration, diaphragm layout and cutting, welding and assembly, and finished product processing. The specific steps are as follows:

[0089] 1. 3D modeling, model analysis, and conversion of 3D data into 2D data:

[0090] Reference Figure 12 The production method includes but is not limited to the following steps:

[0091] S1. Establish a three-dimensional model of the inflatable special-shaped structure, obtain a two-dimensional expansion pattern based on the three-dimensional model, and cut out membrane sheets from the membrane material according to the two-dimensional expansion model. The membrane sheets include an air rib membrane 13, an air wall membrane 20, a first connecting sheet 23, a second connecting sheet 24, a third connecting sheet 25, a tensioning sheet 21, and a reinforcing membrane 22.

[0092] S10, based on the three-dimensional model, adding a first mark at the connection between the air rib 1 and the air wall 2, and splitting along the first mark to obtain an air rib model and an air wall model;

[0093] S11, adding a second mark on the air rib model, unfolding along the second mark to obtain a two-dimensional unfolded pattern of the air rib diaphragm 13, adding a third mark on the two-dimensional unfolded pattern of the air rib diaphragm 13, and dividing the two-dimensional unfolded pattern of the air rib 1 into a plurality of pre-cut plane patterns of the air rib diaphragm 13 along the third mark;

[0094] S12. Add a fourth mark on the air wall model for recording the connection positions of the first connecting piece 23, the second connecting piece 24, the third connecting piece 25, the tensioning piece 21, and the reinforcing membrane 22; split and unfold along the fourth mark to obtain a pre-cut first connecting piece plane graphic, a pre-cut second connecting piece plane graphic, a pre-cut third connecting piece plane graphic, a pre-cut reinforcing membrane plane graphic, a pre-cut tensioning piece plane graphic, and a two-dimensional unfolded air wall membrane graphic; add a fifth mark on the two-dimensional unfolded air wall membrane graphic; and split the two-dimensional unfolded air wall membrane graphic into multiple pre-cut air wall membrane plane graphics along the fifth mark;

[0095] S13, importing the pre-cut air rib diaphragm plane pattern, the pre-cut first connecting piece plane pattern, the pre-cut second connecting piece plane pattern, the pre-cut third connecting piece plane pattern, the pre-cut reinforcing diaphragm plane pattern, the pre-cut tensioning piece plane pattern, and the pre-cut air wall diaphragm plane pattern into the CNC machine tool control module, and automatically cutting out the air rib diaphragm 13, the air wall diaphragm 20, the first connecting piece 23, the second connecting piece 24, the third connecting piece 25, the tensioning piece 21, and the reinforcing diaphragm 22;

[0096] S130. Based on the pre-cut air rib diaphragm plane graphic, the pre-cut first connecting piece plane graphic, the pre-cut second connecting piece plane graphic, the pre-cut third connecting piece plane graphic, the pre-cut reinforcing diaphragm plane graphic, the pre-cut tensioning piece plane graphic, and the pre-cut air wall diaphragm plane graphic, a compensation calculation area is added to the pre-welding position of the plane graphic. The compensation calculation area includes heat shrinkage compensation, tensile stress compensation, and overlap width compensation.

[0097] It is understood that in step S10, the air rib model and the air wall model are three-dimensional graphics generated using 3D drawing software (such as SOLIDWORKS, CREO, UG, etc.), and their dimensions can be defined as actual dimensions. The first mark can be a marking line, a dot pattern, etc. on the three-dimensional graphic.

[0098] It is understood that for steps S11, S12, and S13, the two-dimensional unfolded pattern is a larger pattern. In actual cutting, the two-dimensional unfolded pattern needs to be divided into smaller pre-cut plane patterns to facilitate subsequent compensation verification and welding assembly. Compensation verification refers to the consideration of the effects of thermal shrinkage of the membrane material during welding, the effects of tensile stress after inflation, and the effects of the reserved overlap width after dividing the two-dimensional unfolded pattern into smaller pre-cut plane patterns. Based on these effects, the compensation width of the membrane is further designed on the pre-cut plane pattern.

[0099] In addition, when using PVC-coated polyester fabrics, the influence of the membrane material's fiber orientation must also be considered to ensure that the fiber orientation of each cut piece (especially the high-strength warp yarn direction) is exactly as intended. Misalignment can lead to uneven stress on the finished product, deformation, or even damage.

[0100] Understandably, during the actual welding process, there is the problem of cumulative errors in each diaphragm, resulting in a significant difference between the finished product and the design drawing. To address this, it is necessary to rationally divide the number of 2D unfolded images, designing based on the actual finished product size and the difficulty of processing and production. For example, if the height of air rib 1 is 3m, it is divided into 20 sections. The regular curved surface of air rib 1 is spliced ​​horizontally, while the spherical cap structure at the bottom of air rib 1 is spliced ​​with triangular pieces.

[0101] 2. Diaphragm layout and cutting, welding assembly and finished product processing:

[0102] Reference Figure 13 The production method includes but is not limited to the following steps:

[0103] S2. Welding the plurality of air rib diaphragms 13 into cylindrical air rib components, and then welding the plurality of cylindrical air rib components into upright air ribs 10 and horizontal air ribs 11. Arrange the plurality of upright air ribs 10 in an arranged manner, and then connect the plurality of upright air ribs 10 with the horizontal air ribs 11.

[0104] S3. Weld the first connecting piece 23 to the inner side of the edge of the air wall diaphragm 20, the second connecting piece 24 to the outer side of the edge of the air wall diaphragm 20, and the third connecting piece 25 to the inner side of the air wall diaphragm 20. Divide multiple air wall diaphragms 20 into groups of two each. Take the tensioning piece 21 and connect it to the third connecting piece 25 on the air wall diaphragms 20 in the same group by welding or sewing to form multiple groups of air walls 2.

[0105] S4. Place the air wall 2 between adjacent upright air ribs 10, weld the first connecting piece 23 to the outer wall of the air rib 1, and weld the second connecting piece 24 to the outer wall of the air rib 1 and cover the first connecting piece 23;

[0106] S5. Open through holes on the air wall 2 and / or the air rib 1, and then install air valves on the through holes.

[0107] It is understandable that, for step S2, when welding multiple cylindrical air rib components, a reverse welding method is adopted, that is, welding is performed directly on the outer wall. After welding, the air rib 1 is turned inside out and finally sealed.

[0108] It can be understood that, for step S3, when welding the air wall diaphragm 20, the first connecting piece 23, the second connecting piece 24, the third connecting piece 25, the reinforcing diaphragm 22 and the tensioning piece 21 at the same height are welded from bottom to top, and then welded layer by layer upwards.

Claims

1. An inflatable special-shaped structure, characterized in that: include: at least one air rib (1); At least one air wall (2), the air wall (2) being arranged between the air ribs (1), the air wall (2) comprising an air wall membrane (20) defining an outer wall of the air wall (2), and at least one tensioning piece (21) being arranged between two opposing air wall membranes (20), the tensioning piece (21) being used to close the distance between the two air wall membranes (20) to form a concave area on the outer side of the air wall (2); The air rib (1) and / or the air wall (2) are provided with an inflation portion for inflation. When the air rib (1) or the air wall (2) is provided with the inflation portion, the air rib (1) is in communication with the air wall (2).

2. The inflatable special-shaped structure according to claim 1, characterized in that: Both sides of the tensioning piece (21) are provided with arcuate edges that are retracted toward the center, and the arcuate edges increase the side lengths of both sides of the tensioning piece (21) to prevent the tensioning piece (21) from being torn when subjected to tension.

3. The inflatable special-shaped structure according to claim 1, characterized in that: The air wall (2) further comprises a flexible and bendable first connecting piece (23) and a second connecting piece (24); One end of the first connecting piece (23) is connected to the outer wall of the air rib (1), and the other end is connected to the inner side of the air wall membrane (20); One end of the second connecting piece (24) is connected to the outer wall of the gas rib (1), and the other end is connected to the outer side of the gas wall membrane (20). The second connecting piece (24) is located on the outer side of the first connecting piece (23) and is used to cover the joint between the gas wall membrane (20) and the gas rib (1). Wherein, an inwardly contracted arc is formed between the air wall diaphragm (20) and the air rib (1).

4. The inflatable special-shaped structure according to claim 1, characterized in that: The air wall (2) further comprises a flexible and bendable third connecting piece (25), one end of the third connecting piece (25) being connected to the inner side of the air wall membrane (20), and the other end being connected to the tensioning piece (21).

5. The inflatable special-shaped structure according to claim 4, characterized in that: One end of the third connecting piece (25) is formed of two extension pieces (26), and the two extension pieces (26) extend outward from the end of the third connecting piece (25). The other end of the third connecting piece (25) is formed of two parallel clips (28); The extension piece (26) is arranged on the inner side of the air wall diaphragm (20); The end of the tensioning piece (21) is arranged between the two clamping pieces (28).

6. The inflatable special-shaped structure according to claim 5, characterized in that: The air wall (2) further comprises a reinforcing diaphragm (22), wherein the reinforcing diaphragm (22) is arranged on the inner side of the air wall diaphragm (20) and covers the extending piece (26).

7. The inflatable special-shaped structure according to claim 1, characterized in that: The air ribs (1) include vertical air ribs (10) arranged in an array for supporting the air wall (2) and horizontal air ribs (11) for connecting the ends of the vertical air ribs (10); The horizontal air rib (11) is provided with an arched portion (12), and the size of the vertical air rib (10) gradually decreases in a direction toward the arched portion (12).

8. A manufacturing method for manufacturing the inflatable special-shaped structure according to any one of claims 1 to 7, characterized in that: The air wall (2) further comprises a first connecting piece (23), a second connecting piece (24), a third connecting piece (25) and a reinforcing membrane (22), and the manufacturing method comprises the following steps: S1, establishing a three-dimensional model of the inflatable special-shaped structure, obtaining a two-dimensional unfolded figure based on the three-dimensional model, and cutting out an air rib diaphragm (13), an air wall diaphragm (20), a first connecting piece (23), a second connecting piece (24), a third connecting piece (25), a tensioning piece (21) and a reinforcing diaphragm (22) on the membrane material according to the two-dimensional unfolded model; S2, welding a plurality of the air rib diaphragms (13) into cylindrical air rib components, and then welding a plurality of the cylindrical air rib components into the air rib (1), wherein the air rib (1) comprises an upright air rib (10) and a horizontal air rib (11), wherein the plurality of the upright air ribs (10) are arranged in an arranged manner, and the horizontal air rib (11) is placed at the bottom of the upright air rib (10), and then the plurality of the upright air ribs (10) are connected by the horizontal air rib (11); S3, welding the first connecting piece (23) to the inner side of the edge of the air wall diaphragm (20), welding the second connecting piece (24) to the outer side of the edge of the air wall diaphragm (20), and welding the third connecting piece (25) to the inner side of the air wall diaphragm (20), taking multiple pieces of the air wall diaphragms (20) and dividing them into groups of two, taking the tensioning piece (21) and connecting it to the third connecting piece (25) on the same group of the air wall diaphragms (20) by welding or sewing, so as to form multiple groups of the air walls (2); S4, placing the air wall (2) between adjacent upright air ribs (10), welding the first connecting piece (23) to the outer wall of the upright air ribs (10) and / or the horizontal air ribs (11), and welding the second connecting piece (24) to the outer wall of the upright air ribs (10) and / or the horizontal air ribs (11) and covering the first connecting membrane; S5. Opening a through hole on the air wall (2) and / or the air rib (1), and then installing an air valve on the through hole.

9. The production method according to claim 8, characterized in that: Step S1 also includes the following steps: S10, based on the three-dimensional model, adding a first mark at the connection between the air rib (1) and the air wall (2), and splitting along the first mark to obtain an air rib model and an air wall model; S11, adding a second mark on the gas rib model, unfolding along the second mark to obtain a two-dimensional unfolded pattern of the gas rib diaphragm, adding a third mark on the two-dimensional unfolded pattern of the gas rib diaphragm, and dividing the two-dimensional unfolded pattern of the gas rib diaphragm into a plurality of pre-cut gas rib diaphragm plane patterns along the third mark; S12, adding a fourth mark on the air wall model for recording the connection positions of the first connecting piece (23), the second connecting piece (24), the third connecting piece (25), the tensioning piece (21) and the reinforcing membrane (22), splitting and unfolding along the fourth mark to obtain a pre-cut first connecting piece plane graphic, a pre-cut second connecting piece plane graphic, a pre-cut third connecting piece plane graphic, a pre-cut reinforcing membrane plane graphic, a pre-cut tensioning piece plane graphic and an air wall membrane two-dimensional unfolded graphic, adding a fifth mark on the air wall membrane two-dimensional unfolded graphic, and splitting the air wall membrane two-dimensional unfolded graphic into a plurality of pre-cut air wall membrane plane graphics along the fifth mark; S13, importing the pre-cut air rib diaphragm plane graphic, the pre-cut first connecting piece plane graphic, the pre-cut second connecting piece plane graphic, the pre-cut third connecting piece plane graphic, the pre-cut reinforcing diaphragm plane graphic, the pre-cut tensioning piece plane graphic and the pre-cut air wall diaphragm plane graphic into the CNC machine tool control module, and automatically cutting out the air rib diaphragm (13), the air wall diaphragm (20), the first connecting piece (23), the second connecting piece (24), the third connecting piece (25), the tensioning piece (21) and the reinforcing diaphragm (22).

10. The manufacturing method according to claim 9, characterized in that: Step S13 further includes the steps of: S130. Based on the pre-cut air rib diaphragm plane graphic, the pre-cut first connecting piece plane graphic, the pre-cut second connecting piece plane graphic, the pre-cut third connecting piece plane graphic, the pre-cut reinforcing diaphragm plane graphic, the pre-cut tensioning piece plane graphic and the pre-cut air wall diaphragm plane graphic, a compensation calculation area is added to the pre-welding position of the plane graphic, and the compensation calculation area includes heat shrinkage compensation, tensile stress compensation and overlap width compensation.

Images