Umbrella skeleton structure based on tensegrity and target umbrella skeleton design method

Abstract

The invention discloses an umbrella skeleton structure based on tensegrity and a target umbrella skeleton design method. The umbrella skeleton structure comprises a top connecting piece, a bottom connecting piece and a radial umbrella cover supporting skeleton. The umbrella cover supporting framework comprises a plurality of supporting assemblies which are circumferentially distributed between the top connecting piece and the bottom connecting piece; the top connecting piece and the bottom connecting piece are also connected through a central elastic connecting piece; the supporting assembly comprises 2n-1 supporting rods and elastic connecting pieces, n is the complexity of the supporting assembly, and when the complexity of the supporting assembly is 1, the supporting assembly comprises a first supporting rod and a first elastic connecting piece; one end of the first supporting rod is connected with the top connecting piece; the first elastic connecting piece is connected with the fixing piece and the bottom connecting piece; a horizontal elastic connecting piece is further arranged between every two adjacent fixing pieces on the different supporting assemblies. The umbrella framework structure is light in weight, good in stability and wind resistance and capable of meeting the stability requirements under different spans in different environments. When the complexity of the supporting assembly is 1, the supporting assembly comprises a first supporting rod and a first elastic connecting piece; one end of the first supporting rod is connected with the top connecting piece; the first elastic connecting piece is connected with the fixing piece and the bottom connecting piece; a horizontal elastic connecting piece is further arranged between every two adjacent fixing pieces on the different supporting assemblies. The umbrella framework structure is light in weight, good in stability and wind resistance and capable of meeting the stability requirements under different spans in different environments.

Description

Technical Field

[0001] The present invention relates to the technical field of tensegrity umbrella-shaped structures, and in particular to a tensegrity-based umbrella frame structure and a target umbrella frame design method. Background Art

[0002] The umbrella industry is an ancient industry. The umbrella structure consists of an umbrella frame, an umbrella surface, and an umbrella handle. It is a retractable and deployable structure. Today, umbrella technology has become quite mature, and the existing umbrella structure has good mechanical stability.

[0003] Tensegrity is a special structural form, an emerging mesh structure based on rods and cables, and also a deployable structure. Tensegrity is a structure that evenly distributes the tension in the structure through the application of prestress, forming a stable force system. Since the tension in the structure can effectively resist external loads such as wind and snow loads, it has irreplaceable advantages in lightweight structure design.

[0004] The umbrella-shaped tensegrity structure is a typical form of tensegrity structure, which usually adopts radially distributed rods and cables to form a three-dimensional system with spatial stability. The structure completes the tension of the overall structure through the joint action of the rigging and supporting rods at the center, so that the whole structure remains stable under the action of its own weight and external loads.

[0005] However, the existing tensegrity umbrella-like structures still have some shortcomings and deficiencies, mainly including: insufficient wind resistance, uneven prestressing, complex installation process, small scope of application, and lack of adaptive adjustment capability.

[0006] Therefore, there is a need for a tensegrity umbrella structure that can, while being lightweight and beautiful, further enhance wind resistance, improve prestress uniformity, meet large-span application requirements, and simplify the installation process. Summary of the invention

[0007] The object of the present invention is to provide an umbrella frame structure based on tensegrity and a target umbrella frame design method, wherein the umbrella frame structure is light in weight, has good stability and wind resistance, is easy to install, and can meet the stability requirements of different spans under different environments.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, the present invention provides an umbrella frame structure based on tensegrity, comprising: a top connector, a bottom connector and a radial umbrella support frame; the umbrella support frame comprises a plurality of support components circumferentially distributed between the top connector and the bottom connector; the top connector and the bottom connector are further connected by a central elastic connector; the support components comprise A support rod and an elastic connector, To support the complexity of components, ; When the complexity of the support assembly is 1, it includes a first support rod and a first elastic connector; one end of the first support rod is connected to the top connector, and the other end is provided with a fixing member; the first elastic connector connects the fixing member and the bottom connector; wherein a horizontal elastic connector is also provided between two adjacent fixing members on different support assemblies.

[0009] Optionally, when the complexity of the support assembly is 2, a second support rod, a second elastic connector, a first multi-directional connector and a first hinge are added on the basis of the support assembly with a complexity of 1; the first hinge is arranged at the midpoint of the first support rod; one end of the second support rod is connected to the bottom connector, and the other end is connected to the first hinge; the first multi-directional connector is arranged at the midpoint of the first elastic connector; one end of the second elastic connector is connected to the first hinge, and the other end is connected to the first multi-directional connector; wherein, a horizontal elastic connector is also provided between the corresponding two first hinges and between the corresponding two first multi-directional connectors on two adjacent support assemblies.

[0010] Optional, when the complexity of the supporting component When adding A sub-support rod, a sub-elastic connecting piece, a sub-hinge and a sub-multi-directional connector; the sub-support rod is parallel to the first support rod or the second support rod, one end of which is connected to the sub-hinge, and the other end is connected to the sub-multi-directional connector or the first multi-directional connector; the sub-elastic connecting piece is parallel to the second elastic connecting piece, one end of which is connected to the sub-hinge, and the other end is connected to the sub-multi-directional connector; the sub-multi-directional connector is arranged on the first elastic connecting piece and corresponds to the sub-hinge one by one; wherein a horizontal elastic connecting piece is provided between the corresponding two sub-hinges on two adjacent support assemblies and between the corresponding two sub-multi-directional connectors.

[0011] Optionally, the sub-hinge is respectively arranged on the first support rod, the second support rod and the sub-support rod; wherein the position of the sub-hinge on the second support rod includes: from the end of the second support rod close to the bottom connecting piece The position of the sub-hinge on the first support rod is symmetrical about the second elastic connecting member and the position of the sub-hinge on the second support rod; the position of the sub-hinge on the sub-support rod is at the midpoint of the sub-support rod.

[0012] Optionally, the first elastic connector, the second elastic connector, the central elastic connector, the sub-elastic connector and the horizontal elastic connector are all made of elastic ropes.

[0013] Optionally, the first hinge and the sub-hinge are both hinge hinges.

[0014] In a second aspect, the present invention provides a method for designing a target umbrella frame based on the umbrella frame structure described in the first aspect, comprising: S1: setting tensioning parameters according to the force requirements of the target umbrella frame; the tensioning parameters include: tensioning angle and complexity of the support assembly; S2: Based on the tension parameters and the top connector, the bottom connector, the central elastic connector and two support components symmetrical about the central elastic connector and in the same plane in the umbrella skeleton structure, a tensegrity unit structure is obtained; S3: setting the number of circular array movements, and based on the number of circular array movements and the tensegrity unit structure obtained in step S2, performing circular array movements with the top connector, the central elastic connector, and the bottom connector connected in sequence as the central axis; obtaining the preliminary structure of the target umbrella skeleton; S3: Connecting nodes in adjacent supporting assemblies in the preliminary structure of the target umbrella frame through horizontal elastic connectors to obtain the target umbrella frame; the nodes include a fixing member, a first multi-directional connector, a sub-multi-directional connector, a first hinge, and a sub-hinge.

[0015] Optionally, the tensioning angle is an angle between the first support rod and the first elastic connector in the support assembly.

[0016] Optionally, the complexity is related to the number of support rods and elastic connectors in the support assembly. When there is A support rod and an elastic connecting piece.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a tensegrity-based umbrella frame structure, comprising a top connector, a bottom connector, a radial umbrella support frame and a first elastic connector; wherein the umbrella support frame comprises a plurality of support components circumferentially distributed between the top connector and the bottom connector; two symmetrical support components, the top connector, the bottom connector and the first elastic connector constitute a tensegrity umbrella structure, which has the advantages of high force efficiency and light weight compared to a traditional umbrella structure; The setting of the fixings and multi-directional connectors in the support assembly ensures that the elastic connectors and the support rods are evenly stressed, effectively improving the stability of the structure. At the same time, the addition of fixings improves the structural stability and wind resistance, allowing it to remain stable under strong wind conditions. The umbrella support frame is composed of multiple support components. The modular design allows each component to be assembled quickly, reducing on-site installation time and labor costs and improving construction efficiency. This has great practical value for the construction of large outdoor venues or temporary facilities. The number of support rods and elastic connectors in the support assembly can be adjusted according to the complexity, thereby changing the stability of the umbrella frame structure to meet the stability requirements of different spans in different environments; The present invention provides a target umbrella frame design method. By adjusting tensioning parameters and the number of circular array movements, a plurality of target umbrella frames with different shapes, sizes and structural characteristics can be flexibly generated, thereby realizing the parametric design of the umbrella frame structure. The size, strength and applicability of the umbrella frame structure can be quickly adjusted according to demand. Compared with the existing umbrella structure scheme with a single specification, the method has high flexibility, can adapt to various public scenes, and meets the needs of urban design. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The complexity of an embodiment of the present invention is shown as follows Schematic diagram of the skeleton structure of the time umbrella; Figure 2 The complexity of an embodiment of the present invention is shown as follows Schematic diagram of the skeleton structure of the time umbrella; FIG. 3 (a) shows the tension angle in one embodiment of the present invention. , Complexity Schematic diagram of tensegrity unit structure; FIG. 3( b ) shows the tension angle in one embodiment of the present invention. , Complexity Schematic diagram of tensegrity unit structure; Figure 4 The figure shows the tension angle in one embodiment of the present invention. , Complexity Schematic diagram of tensegrity unit structure; FIG. 5 (a) shows the tension angle in one embodiment of the present invention. , complexity , the number of circular array movements Schematic diagram of the target umbrella skeleton structure; FIG. 5( b ) shows the tension angle in one embodiment of the present invention. , complexity , the number of circular array movements Top view of the target umbrella skeleton structure FIG. 6 (a) shows the tension angle in one embodiment of the present invention. , complexity , the number of circular array movements Schematic diagram of the target umbrella skeleton structure; FIG6( b ) shows the tension angle in one embodiment of the present invention. , complexity , the number of circular array movements A top view of the target umbrella skeleton structure; FIG. 7( a ) shows the design parameters of an embodiment of the present invention. Schematic diagram of the target umbrella skeleton structure; FIG. 7( b ) shows the design parameters of an embodiment of the present invention. Schematic diagram of the target umbrella skeleton structure; FIG. 7( c ) shows the design parameters of an embodiment of the present invention. Schematic diagram of the target umbrella skeleton structure; In the figure: 1, top connector; 2-1, first support rod; 2-2, second support rod; 2-3, sub-support rod; 3, central elastic connector; 4-1, first elastic connector; 4-2, second elastic connector; 4-3, sub-elastic connector; 5-1, first hinge; 5-2, sub-hinge; 6-1, first multi-directional connector; 6-2, sub-multi-directional connector; 7, fixing member; 8, bottom connector; 9, horizontal elastic connector. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0020] The embodiment of the present invention introduces an umbrella frame structure based on tensegrity, such as Figure 1 As shown, it comprises: a top connecting member 1, a bottom connecting member 8 and a radial umbrella support frame; the umbrella support frame comprises a plurality of support components circumferentially distributed between the top connecting member 1 and the bottom connecting member 8; the top connecting member 1 and the bottom connecting member 8 are also connected by a central elastic connecting member 3; the support components comprise A support rod and an elastic connector, To support the complexity of components, ; When the complexity of the support assembly is 1, it includes a first support rod 2-1 and a first elastic connector 4-1; one end of the first support rod 2-1 is connected to the top connector 1, and the other end is provided with a fixing member 7; the first elastic connector 4-1 connects the fixing member 7 and the bottom connector 8; wherein, a horizontal elastic connector 9 is also provided between two adjacent fixing members 7 on different support assemblies.

[0021] in, The supporting rods include a first supporting rod 2-1. When the first support rod 2-1 and the second support rod 2-2 are included, When, it includes a first support rod 2-1, a second support rod 2-2 and 2-3 support rods; in, The elastic connecting member includes a first elastic connecting member 4-1. When the first elastic connector 4-1 and the second elastic connector 4-2 are included, When, it includes a first elastic connecting member 4-1, a second elastic connecting member 4-2 and Sub-connector 4-3; Specifically, the top connector 1 and the bottom connector 8 are respectively placed at the top and bottom of the umbrella body, and are combined with the elastic connector 4-1 to support and fix the first support rod 2-1; the top connector 1 connects the upper ends of all the first support rods 2-1, and the bottom connector 8 connects the lower ends of all the first support rods 2-1 through the first elastic connector 4-1 perpendicular to the central elastic connector 3, providing overall structural support for the umbrella frame; the first elastic connector 4-1 is perpendicular to the central elastic connector 3; Specifically, a fixing member 7 is also provided at the lower end of all first support rods 2-1, which can be fixed to the ground by ground nails or other means, so that the umbrella body can be stable even in a strong wind environment. The fixing member can be flexibly arranged according to actual needs to ensure that the umbrella body adapts to different application environments.

[0022] Specifically, in this embodiment, the top connecting member 1 and the bottom connecting member 8 are both disc-shaped connecting rod hubs, but in other embodiments, they can also be set as polygonal connecting rod hubs or square connecting rod hubs; Specifically, the horizontal elastic connector 9 is connected between adjacent fixing members 7 to form a tension system of the umbrella surface. The tension distribution of the umbrella surface can be adjusted by the length of the horizontal elastic connector 9.

[0023] The present invention provides an umbrella frame structure based on tensegrity, which is light in weight, has good stability and wind resistance, is easy to install, and can meet the stability requirements of different spans in different environments.

[0024] In this embodiment, if Figure 2 , as shown in Figure 3 (a) and Figure 3 (b), when the complexity of the support component When the complexity Some components are added on the basis of the support assembly, and the added components are specifically: a second support rod 2-2, a second elastic connector 4-2, a first multi-directional connector 6-1 and a first hinge 5-1; the first hinge 5-1 is arranged at the midpoint of the first support rod 2-1; one end of the second support rod 2-2 is connected to the bottom connector 8, and the other end is connected to the first hinge 5-1; the first multi-directional connector 6-1 is arranged at the midpoint of the first elastic connector 4-1; one end of the second elastic connector 4-2 is connected to the first hinge 5-1, and the other end is connected to the first multi-directional connector 6-1; wherein, a horizontal elastic connector 9 is also provided between the corresponding two first hinges 5-1 on two adjacent support assemblies and between the corresponding two first multi-directional connectors 6-1.

[0025] Specifically, as shown in FIG3 , there are two tensegrity unit structures (composed of two symmetrical support components, a top connector 1, a bottom connector 8 and a central elastic connector 3) with different tensioning angles and a complexity of 2. It can be seen that a second support rod 2-2 and a second elastic connector 4-2 are added inside the support component to enhance the stability of the umbrella frame, and a first hinge 5-1 and a first multi-directional connector 6-1 are used as connecting devices between the support rods and between the elastic connectors. Specifically, the first hinge 5-1 is a hinge hinge, so that the second support rod 2-2 can rotate freely during installation and disassembly; specifically, the hinge hinge is designed with a locking mechanism, and when the support rod is unfolded into place, the hinge hinge will automatically lock to ensure that the umbrella body remains stable during use.

[0026] Specifically, the first multi-directional connector 6-1, as a connecting device at the junction of the first elastic connector 4-1, the second elastic connector 4-2, the sub-support rod 2-3 and the horizontal elastic connector 9, can connect elastic connectors (elastic ropes) in multiple directions, and form an integrated structural network with the first support rod 2-1 and the bottom connector 8, to ensure that the umbrella body has sufficient bearing capacity and structural stability under the action of external force.

[0027] In this embodiment, when the complexity of the support assembly When the complexity Add on the basis of the support components A sub-support rod 2-3, a sub-elastic connector 4-3, a sub-hinge 5-2 and a sub-multi-directional connector 6-2; the sub-support rod 2-3 is parallel to the first support rod 2-1 or the second support rod 2-2, one end of which is connected to the sub-hinge 5-2, and the other end is connected to the sub-multi-directional connector 6-2 or the first multi-directional connector 6-1; the sub-elastic connector 4-3 is parallel to the second elastic connector 4-3, one end of which is connected to the sub-hinge 5-2, and the other end is connected to the sub-multi-directional connector 6-5; the sub-multi-directional connector 6-2 is arranged on the first elastic connector 4-1, corresponding one to the sub-hinge 5-2; wherein, a horizontal elastic connector 9 is provided between the corresponding two sub-hinges 5-2 on two adjacent support assemblies and between the corresponding two sub-multi-directional connectors 6-2.

[0028] The sub-hinge 5-2 is respectively arranged on the first support rod 2-1, the second support rod 2-2 and the sub-support rod 2-3; wherein the position of the sub-hinge 5-2 on the second support rod 2-2 includes: from the end of the second support rod close to the bottom connecting member 8 The position of the sub-hinge on the first support rod 2-1 is symmetrical about the second elastic connecting member 4-2 and the position of the sub-hinge 5-2 on the second support rod 2-2; the position of the sub-hinge 5-2 on the sub-support rod 2-3 is at the midpoint of the sub-support rod 2-3.

[0029] Specifically, Figure 4 The tension angle shown , Complexity The tensegrity unit structure and the complexity of different tension angles as shown in Figures 7(a) and 7(b) Schematic diagram of the target umbrella skeleton structure; when the complexity of the supporting components When the complexity On the basis of the supporting assembly, two sub-support rods 2-3, two sub-elastic connectors 4-3, two sub-multi-directional connectors 6-2 and two sub-hinges 5-2 are added; Among them, one sub-hinge 5-2 is arranged at the midpoint of the second support rod 2-2, and the other sub-hinge 5-2 is arranged on the first support rod 2-1 and is symmetrical about the second elastic connector 4-2; the two sub-multi-directional connectors 6-2 are both arranged on the first elastic connector 4-1 and are symmetrical about the first multi-directional connector 6-1; the two sub-elastic connectors 4-3 are both perpendicular to the first elastic connector 4-1, and one end is connected to the corresponding sub-hinge 5-2, and the other end is connected to the corresponding sub-multi-directional connector 6-2; one end of the two sub-support rods 2-3 is connected to the first multi-directional connector, and the other end is respectively connected to the two sub-hinges 5-2; wherein, a horizontal elastic connector 9 is also provided between the corresponding two sub-hinges 5-2 on two adjacent support components and between the corresponding two sub-multi-directional connectors 6-2.

[0030] Specifically, compared to the complexity As a result of the umbrella frame, it can be seen that sub-support rods 2-3 and sub-elastic connectors 4-3 are added inside the support assembly to further enhance the stability of the umbrella frame, and sub-hinges 5-2 and sub-multi-directional connectors 6-2 are used as connecting devices between support rods, between support rods and elastic connectors, and between elastic connectors; Specifically, the sub-hinges 5-2 are hinge hinges, so that the sub-support rods 2-3 can rotate freely during installation and removal; Specifically, the sub-multi-directional connector 6-2, as a connecting device at the junction of the first elastic connector 4-1, the sub-elastic connector 4-3, and the horizontal elastic connector 9, can connect elastic connectors (elastic ropes) in multiple directions, and form an integrated structural network with the first support rod 2-1, the first sub-multi-directional connector 6-1 and the bottom connector 8, so that the umbrella frame has stronger bearing capacity and stability under the action of external force.

[0031] In this embodiment, the umbrella frame structure adopts lightweight and high-strength materials. Specifically, Q345 steel is used as the material of the support rod, and spring steel or steel wire with good elasticity is used to make elastic ropes (central elastic connector, horizontal elastic connector, elastic connector). While ensuring the strength, rigidity and stability of the umbrella frame structure, the weight of the umbrella body is reduced, which is suitable for long-term outdoor use. Example 2

[0032] The embodiment of the present invention introduces a method for designing a target umbrella frame based on the umbrella frame structure described in Embodiment 1, comprising: S1: According to the force requirements of the target umbrella frame, set the tensioning parameters; the tensioning parameters include: the tensioning angle of the support component and complexity ; Specifically, the tension angle is the angle between the first support rod 2-1 and the first elastic connector 4-1 in the support assembly. Complexity It is related to the number of support rods and elastic connectors in the support assembly. When the complexity is When there is A support rod and an elastic connecting piece.

[0033] S2: Based on the tension parameters and the top connector 1, the bottom connector 8, the central elastic connector 3 and two support components symmetrical about the central elastic connector and in the same plane in the umbrella frame structure, a tensegrity unit structure is obtained; Specifically, when , the tensegrity unit structure is shown in Figure 5 (a) and (b); when , the tensegrity unit structure is shown in Figure 5 (a) and (b); S3: Set the number of circular array movements , based on the number of circular array movements The tensegrity unit structure obtained in step S2 performs a circular array motion with the top connector 1, the central elastic connector 3 and the bottom connector 8 connected in sequence as the central axis; and obtains a preliminary structure of the target umbrella skeleton; S3: Connect the nodes in the adjacent supporting components in the preliminary structure of the target umbrella frame through the horizontal elastic connector 9 to obtain the target umbrella frame; the nodes include the fixing member 7, the first multi-directional connector 6-1, the sub-multi-directional connector 6-2, the first hinge 5-1, and the sub-hinge 5-2.

[0034] Specifically, as shown in Figure 5 (b) and Figure 6 (b), as well as The top view of the target umbrella skeleton structure; the angle between two adjacent tensegrity units is recorded as , There is a relationship with the number of circular array movements, and the formula is expressed as:

[0035] The number of the outermost horizontal elastic connectors 9 that eventually form the target skeleton umbrella is ; In this embodiment, usually, , the tension angle in the tensegrity unit structure The smaller the radius, the larger the expansion radius of the designed target umbrella frame; and the complexity of the tensegrity unit structure, that is, the complexity of the supporting components The larger the number, the more support rods and elastic ropes are included in the support assembly, and the greater the bearing capacity of the tensegrity unit structure; the number of circular array movements The larger it is, the more tensegrity unit structures the designed target umbrella skeleton contains, and the greater the strength and stability of the target umbrella skeleton.

[0036] According to the preset strength and span requirements, three design parameters are determined The value of is used to obtain a tensegrity umbrella structure that can meet the requirements of different environments and spans.

[0037] In this embodiment, implementation scheme A is designed with parameters Umbrella skeleton structure, such as Figure 2 As shown; Implementation Scheme B is designed with the following parameters: The umbrella skeleton structure is shown in Figure 5 (a) and (b); Implementation scheme C has design parameters of The umbrella skeleton structure is shown in Figure 6 (a) and (b); Implementation Scheme D is designed with the following parameters: The umbrella skeleton structure is shown in Figure 7 (c); Implementation A is preferred because it has a simple structure and high material utilization rate under the premise of meeting wind resistance and stability, and is suitable for a variety of outdoor scenes; it is also easy to install and easy to move and disassemble. In contrast, the opening angle of the umbrella skeleton structure corresponding to Implementation B is too large; Implementation C reduces the number of circular array movements, but the stability of the umbrella skeleton structure is difficult to meet actual requirements; Implementation D expands the complexity to obtain a multi-layer structure, which further enhances the strength, but the structural complexity is high, and the material and installation costs increase, which is not suitable for scenes that require quick construction and convenient movement.

[0038] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

1. An umbrella frame structure based on tensegrity, characterized in that: include: A top connector, a bottom connector and a radial umbrella support frame; the umbrella support frame includes a plurality of support components circumferentially distributed between the top connector and the bottom connector; the top connector and the bottom connector are also connected by a central elastic connector; the support components include A support rod and an elastic connector, To support the complexity of components, ; When the complexity of the support assembly is 1, it includes a first support rod and a first elastic connector; one end of the first support rod is connected to the top connector, and the other end is provided with a fixing member; the first elastic connector connects the fixing member and the bottom connector; wherein a horizontal elastic connector is also provided between two adjacent fixing members on different support assemblies.

2. The tensegrity-based umbrella frame structure according to claim 1, characterized in that: When the complexity of the support assembly is 2, a second support rod, a second elastic connector, a first multi-directional connector and a first hinge are added on the basis of the support assembly with a complexity of 1; the first hinge is arranged at the midpoint of the first support rod; one end of the second support rod is connected to the bottom connector, and the other end is connected to the first hinge; the first multi-directional connector is arranged at the midpoint of the first elastic connector; one end of the second elastic connector is connected to the first hinge, and the other end is connected to the first multi-directional connector; wherein, a horizontal elastic connector is also provided between the corresponding two first hinges and between the corresponding two first multi-directional connectors on two adjacent support assemblies.

3. The tensegrity-based umbrella frame structure according to claim 2, characterized in that: When the complexity of the supporting components When adding A sub-support rod, a sub-elastic connecting piece, a sub-hinge and a sub-multi-directional connector; the sub-support rod is parallel to the first support rod or the second support rod, one end of which is connected to the sub-hinge, and the other end is connected to the sub-multi-directional connector or the first multi-directional connector; the sub-elastic connecting piece is parallel to the second elastic connecting piece, one end of which is connected to the sub-hinge, and the other end is connected to the sub-multi-directional connector; the sub-multi-directional connector is arranged on the first elastic connecting piece and corresponds to the sub-hinge one by one; wherein a horizontal elastic connecting piece is provided between the corresponding two sub-hinges on two adjacent support assemblies and between the corresponding two sub-multi-directional connectors.

4. The tensegrity-based umbrella frame structure according to claim 3, characterized in that: The sub-hinges are respectively arranged on the first support rod, the second support rod and the sub-support rod; wherein the position of the sub-hinges on the second support rod includes: from one end of the second support rod close to the bottom connecting piece The position of the sub-hinge on the first support rod is symmetrical about the second elastic connecting member and the position of the sub-hinge on the second support rod; the position of the sub-hinge on the sub-support rod is at the midpoint of the sub-support rod.

5. The tensegrity-based umbrella frame structure according to claim 4, characterized in that: The first elastic connector, the second elastic connector, the central elastic connector, the sub-elastic connector and the horizontal elastic connector are all made of elastic ropes.

6. The tensegrity-based umbrella frame structure according to claim 5, characterized in that: The first hinge and the sub-hinge are both hinge hinges.

7. A method for designing a target umbrella frame based on the umbrella frame structure according to any one of claims 1 to 6, characterized in that: include: S1: Set tension parameters according to the force requirements of the target umbrella frame; The tensioning parameters include: tensioning angle and complexity of the support assembly; S2: Based on the tension parameters and the top connector, the bottom connector, the central elastic connector and two support components symmetrical about the central elastic connector and in the same plane in the umbrella skeleton structure, a tensegrity unit structure is obtained; S3: setting the number of circular array movements, and based on the number of circular array movements and the tensegrity unit structure obtained in step S2, performing circular array movements with the top connector, the central elastic connector, and the bottom connector connected in sequence as the central axis; obtaining the preliminary structure of the target umbrella skeleton; S3: Connecting nodes in adjacent supporting assemblies in the preliminary structure of the target umbrella frame through horizontal elastic connectors to obtain the target umbrella frame; the nodes include a fixing member, a first multi-directional connector, a sub-multi-directional connector, a first hinge, and a sub-hinge.

8. The target umbrella frame design method according to claim 7, characterized in that: The tensioning angle is the angle between the first support rod and the first elastic connecting member in the support assembly.

9. The target umbrella frame design method according to claim 7, characterized in that: The complexity is related to the number of support rods and elastic connectors in the support assembly. When there is A support rod and an elastic connecting piece.

Images