Hub type hollow single-layer latticed shell connecting joint and latticed shell structure

Abstract

The utility model discloses a hub type hollow single-layer latticed shell connecting joint and a latticed shell structure. The connecting joint comprises a plurality of extension plate connecting assemblies and a joint body, and a cavity is formed in the center of the interior of the joint body. The upper surface and the lower surface of the node body are each provided with a plurality of grooves evenly distributed in the circumferential direction to form a hub shape. A plurality of through holes which are uniformly distributed at intervals along the circumferential direction are formed in the side surface of the node main body, and each through hole is communicated with the cavity; the multiple extension plate connecting assemblies are fixed to the side face of the joint body and located between every two adjacent through holes. According to the large-span aluminum alloy single-layer latticed shell structure, through the cavities in transition connection in the middle, the strength requirement of the joint is met, meanwhile, sufficient shear resistance and bending resistance are provided, and the performance requirement of the large-span aluminum alloy single-layer latticed shell structure is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of net shell node, more particularly to a kind of hub type hollow single-layer net shell connecting node and net shell structure. BACKGROUND

[0002] Single-layer aluminum alloy net shell structure has the characteristics of light weight, corrosion resistance, beautiful appearance, etc., and has been widely used in large-span space structure in recent years, among them, plate type node is the most commonly used node type of this kind of aluminum alloy single-layer net shell structure.

[0003] However, since the plate type node is connected with the aluminum alloy rod piece flange only through the cover plate, its shear capacity is poor, and when the section height requirement of the rod piece is high, the plate type node is prone to instability failure, which cannot meet the performance requirements of the node for large-span aluminum alloy net shell structure.

[0004] Therefore, it is an urgent problem for those skilled in the art to provide a hub type hollow single-layer net shell connecting node and net shell structure. INVENTION CONTENTS

[0005] Therefore, the utility model provides a kind of hub type hollow single-layer net shell connecting node and net shell structure to solve the problem of insufficient shear capacity of single-layer aluminum alloy net shell node, and improve the overall performance of node.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A hub type hollow single-layer net shell connecting node includes a plurality of extension plate connecting assemblies, and further includes a node body, the node body has a cavity inside the center; the upper surface and the lower surface of the node body are both provided with a plurality of grooves uniformly distributed in the circumferential direction to form a hub shape; the side surface of the node body is provided with a plurality of through holes uniformly and spacedly distributed in the circumferential direction, and each through hole is in communication with the cavity; a plurality of extension plate connecting assemblies are respectively fixed on the side surface of the node body and located between two adjacent through holes.

[0008] By adopting the above technical solutions, the utility model has the following beneficial effects:

[0009] Through the cavity of intermediate transition connection, sufficient shear and bending resistance is provided while ensuring the strength requirement of the node, to ensure the performance requirements of large-span aluminum alloy single-layer net shell structure.

[0010] Further, the node body is integrally formed.

[0011] The beneficial effects of the above further technical solutions are that multiple rod pieces can be assembled simultaneously at the construction site without separate assembly with the rod piece, the construction process of net shell structure on site can be simplified, and the construction efficiency is improved.

[0012] Further, each of the extension plate connecting assemblies comprises an upper extension plate, a lower extension plate and a lateral extension plate, the upper extension plate is integrally connected with the top of the side of the node body and is located between two adjacent through holes, the lower extension plate is integrally connected with the bottom of the side of the node body and is located between two adjacent through holes, the upper extension plate and the lower extension plate are located in a corresponding position, the lateral extension plate is integrally connected with the side of the node body and is located between the upper extension plate and the lower extension plate, the upper extension plate, the lower extension plate and the lateral extension plate are all provided with first connecting holes, and the upper extension plate and the lateral extension plate and the lower extension plate and the lateral extension plate are both provided with an insertion slot.

[0013] Further, the cavity is in an elliptical shape.

[0014] Further, the through hole is in a trumpet shape.

[0015] A space grid structure comprises a plurality of I-shaped rods, a plurality of connecting pieces and the hub-type hollow single-layer space grid connecting node, each of the I-shaped rods is inserted into two corresponding upper and lower insertion slots, the second connecting hole of the upper flange of the I-shaped rod is connected with the first connecting hole of the corresponding upper extension plate through the connecting piece, the second connecting hole of the lower flange of the I-shaped rod is connected with the first connecting hole of the corresponding lower extension plate through the connecting piece, and the second connecting hole of the web of the I-shaped rod is connected with the first connecting hole of the corresponding lateral extension plate through the connecting piece.

[0016] Therefore, the hub-type hollow single-layer space grid connecting node and the space grid structure are provided, compared with the prior art, the cavity of the intermediate transition connection changes the force transmission mode and the failure mode of the traditional plate-type node, the shear resistance and the stiffness of the node are improved, through finite element analysis, when the node domain is damaged under the bending, shearing, tension and compression working conditions, the damage position is the end of the rod and the root of the extension plate, and the core area of the node remains complete. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by the provided drawings without creative labor for those skilled in the art.

[0018] Figure 1 The drawings are schematic three-dimensional structure diagrams of the hub-type hollow single-layer space grid connecting node.

[0019] Figure 2 The drawing is a front view of a hub type hollow single-layer net shell connecting node provided by the present application;

[0020] Figure 3 The drawing is a bottom view of a hub type hollow single-layer net shell connecting node provided by the present application;

[0021] Figure 4 The drawing is Figure 2 the cross-sectional axial view of A-A;

[0022] Figure 5 The drawing is Figure 2 the cross-sectional axial view of B-B;

[0023] Figure 6 The drawing is a bending stiffness comparison curve diagram of a hub type hollow single-layer net shell connecting node provided by the present application and an existing plate type node;

[0024] Figure 7 The drawing is a shear capacity comparison curve diagram of a hub type hollow single-layer net shell connecting node provided by the present application and an existing plate type node;

[0025] Figure 8 The drawing is a tensile capacity comparison curve diagram of a hub type hollow single-layer net shell connecting node provided by the present application and an existing plate type node;

[0026] Figure 9 The drawing is a compression capacity comparison curve diagram of a hub type hollow single-layer net shell connecting node provided by the present application and an existing plate type node. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] As Figures 1-9The utility model discloses a kind of wheel hub hollow single-layer reticulated shell connecting nodes, including multiple extension plate connecting components 1, node main body 2, node main body 2 inside center has cavity 21, in this embodiment, cavity 21 is oval;Node main body 2 upper surface and lower surface are all with multiple recesses 22 evenly distributed along circumference to form hub shape;Node main body 2 side has multiple through holes 23 evenly and spaced distribution along circumference, and every through hole 23 is communicated with cavity 21, in this embodiment, through hole 23 is horn-shaped;Multiple extension plate connecting components 1 are respectively fixed in node main body 2 side and located between two adjacent through holes 23.The cavity 21 of intermediate transition connection is provided in the utility model, while guaranteeing the strength requirement of node, sufficient shear resistance, bending resistance is provided, and the performance requirement of large-span aluminum alloy single-layer reticulated shell structure is guaranteed.

[0029] Specifically, the node main body 2 is integrally formed, so that the rod members can be assembled simultaneously at the construction site without separate assembly, the construction process of the reticulated shell structure can be simplified, and the construction efficiency is improved.

[0030] Specifically, each extension plate connecting component 1 includes an upper extension plate 11, a lower extension plate 12, and a lateral extension plate 13. The upper extension plate 11 is integrally connected to the top of the side surface of the node main body 2 and located between two adjacent through holes 23. The lower extension plate 12 is integrally connected to the bottom of the side surface of the node main body 2 and located between two adjacent through holes 23. The upper extension plate 11 corresponds in position to the lower extension plate 12 in an up-down direction. The lateral extension plate 13 is integrally connected to the side surface of the node main body 2 and located between the upper extension plate 11 and the lower extension plate 12. Each of the upper extension plate 11, the lower extension plate 12, and the lateral extension plate 13 has a first connecting hole. An insertion slot is formed between the upper extension plate 11 and the lateral extension plate 13 and between the lower extension plate 12 and the lateral extension plate 13.

[0031] The utility model discloses a kind of reticulated shell structures, including multiple I-shaped members, multiple connecting pieces and the above-mentioned wheel hub hollow single-layer reticulated shell connecting node, each I-shaped member is inserted into two insertion slots corresponding in position (insertion slot size is same with the flange thickness of I-shaped member), and the second connecting hole of the upper flange of I-shaped member is connected with the first connecting hole of corresponding upper extension plate 11 by connecting piece, the second connecting hole of the lower flange of I-shaped member is connected with the first connecting hole of corresponding lower extension plate 12 by connecting piece, the second connecting hole of the web of I-shaped member is connected with the first connecting hole of corresponding lateral extension plate 13 by connecting piece, in this embodiment, connecting piece is stainless steel material, I-shaped member is aluminum alloy material.

[0032] The various embodiments described in this specification are presented by way of example, and each embodiment is presented for the purpose of conveying the novelty and inventive aspects of the present patent application. Each embodiment is presented in a progressive and explanatory manner, and each embodiment highlights differences from other embodiments. The same or similar parts and / or functions between embodiments are to be understood as mutual references among the embodiments.

[0033] The above description of disclosed embodiments enables one of ordinary skill in the art to make and use the patent application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the patent application. Thus, the present patent application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wheel hub type hollow single-layer lattice shell connecting joint comprising a plurality of extension plate connecting assembly, characterized in that, The node body has a cavity in the center, and the upper and lower surfaces of the node body are provided with a plurality of circumferentially uniformly distributed grooves to form a hub shape.

2. A wheel-spoke type hollow single-layer reticulated shell connecting joint according to claim 1, characterized in that, The node body is integrally formed.

3. A wheel-spoke type hollow single-layer reticulated shell connecting joint according to claim 1 or 2, characterized in that, Each of the extension plate connecting assemblies comprises an upper extension plate, a lower extension plate and a lateral extension plate, the upper extension plate is integrally connected with the top of the side surface of the node body and located between two adjacent through holes, the lower extension plate is integrally connected with the bottom of the side surface of the node body and located between two adjacent through holes, the upper extension plate and the lower extension plate are located in a corresponding position, the lateral extension plate is integrally connected with the side surface of the node body and located between the upper extension plate and the lower extension plate, the upper extension plate, the lower extension plate and the lateral extension plate are provided with first connecting holes, and the upper extension plate and the lateral extension plate and the lower extension plate and the lateral extension plate are provided with insertion slots.

4. A wheel-spoke type hollow single-layer reticulated shell connecting joint according to claim 3, characterized in that, The cavity is in an elliptical shape.

5. A wheel-spoke type hollow single-layer reticulated shell connecting joint according to claim 3, characterized in that, The through hole is in a trumpet shape.

6. A latticed structure characterised in that, The hub type hollow single-layer reticulated shell connecting node comprises a plurality of I-shaped rods, a plurality of connecting pieces and the hub type hollow single-layer reticulated shell connecting node according to any one of claims 3-5, each of the I-shaped rods is inserted into two corresponding upper and lower insertion slots, the second connecting hole of the upper flange of the I-shaped rod is connected with the first connecting hole of the corresponding upper extension plate through the connecting piece, the second connecting hole of the lower flange of the I-shaped rod is connected with the first connecting hole of the corresponding lower extension plate through the connecting piece, and the second connecting hole of the web of the I-shaped rod is connected with the first connecting hole of the corresponding lateral extension plate through the connecting piece.

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