Aluminum alloy marquee with assembled prestressed planar grid embedded hub nodes

Abstract

An aluminum alloy tent with an assembled prestressed planar grid embedded hub node belongs to the technical field of tents. The node assembly includes a hub body and an insert; the hub body is fixedly sleeved on the chord member, and a plurality of the inserts are installed on the outer side surface of the hub body. Each insert is provided with a slot, and a plurality of pin holes are opened on the slot. The pin holes are used for installing pins. The web member is provided with a plug-in portion which is inserted into the slot of the insert and fixed by a pin, and the steel cable is inserted into the slot of the insert and connected to the pin. In the present invention, the chord hub is divided into a hub body and an insert, which greatly reduces the circumscribed circle diameter of the mold opening and reduces the aluminum extrusion cost compared with the integral extrusion molding. For the complex node of the present invention, the way of extrusion plus assembly is easier to ensure the fitting accuracy compared with the traditional connection methods of welding and fasteners, and the processing technology is also simpler. Without the influence of welds, the overall strength is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of marquees, and particularly relates to an aluminum alloy marquee applying an embedded hub node of an assembled prestressed plane grid. Background Art

[0002] Aluminum alloy has the advantages of low density, easy forming and high specific strength, and is widely used in fields such as aerospace and ordnance industry. Due to a series of advantages such as its light weight, high strength, easy processing, corrosion resistance and beauty, large-span aluminum alloy space structures have attracted the attention and favor of architects and structural engineers with their excellent expressiveness and applicability. The connection nodes of single-layer aluminum alloy reticulated shells are key components of such structures.

[0003] The patent "A Shear-resistant Connection Structure of Aluminum Alloy Plate Nodes and Its Connection Method" (application number CN201810229409.9) discloses a shear-resistant connection structure of aluminum alloy plate nodes using circular stiffening members, and there is no connection and no contact between the stiffening members and the connecting members. Although this connection structure is simpler to install, construction errors are allowed, and it has stronger practicability, but the bending moment and shear force transmitted by the node are limited, and it cannot provide sufficient bearing capacity and overall stiffness for the structure, resulting in a limited structural span of the reticulated shell. Summary of the Invention

[0004] In order to solve the problems existing in the above-mentioned prior art, the invention further provides an aluminum alloy marquee applying an embedded hub node of an assembled prestressed plane grid, which can have sufficient bearing capacity and overall stiffness.

[0005] The technical solution adopted by the invention is as follows:

[0006] The aluminum alloy marquee applying an embedded hub node of an assembled prestressed plane grid includes a grid structure; the grid structure includes node components and web members, steel cables and chord members connected by the node components.

[0007] The node components include a hub body and inserts; the hub body is fixedly sleeved on the chord member, and a plurality of the inserts are installed on the outer side surface of the hub body. Each insert is provided with a slot, and a plurality of pin holes are opened on the slot. The pin holes are used for installing pins. The web member is provided with a plugging portion which is plugged into the slot of the insert and fixed by a pin. The steel cable is inserted into the slot of the insert and connected to the pin.

[0008] Further, the chord member includes a chord member body and an internal member; a plurality of the chord member bodies are connected in series through the internal member, and the chord member body is fixed to the internal member.

[0009] Further, the chord member is composed of internal members.

[0010] Further, a plurality of concentric arc-shaped grooves are circumferentially arranged on the outer surface of the built-in member and the hub body, and arc-shaped connecting portions are arranged at the inner ends of the embedding members and are inserted into the arc-shaped grooves.

[0011] Further, when the chord member is composed of a built-in member, a central hole is arranged in the arc-shaped connecting portion, and the central hole is used for installing a lead screw. The embedding member is clamped and installed on the hub body through nuts arranged at both ends of the lead screw.

[0012] Further, the aluminum alloy tent with the embedded hub node of the assembled prestressed planar grid structure further includes a water trough. Card slots are arranged at both outer ends of the chord member body, and both ends of the water trough are clamped and installed on the chord member body through the card slots.

[0013] The present invention has the following beneficial effects compared with the prior art:

[0014] 1. Compared with the traditional aluminum alloy single-layer reticulated shell structure, the prestressed planar grid of the present invention skillfully uses the prestress technology, effectively eliminates the gap problem in the assembly process, and significantly enhances the overall rigidity of the grid. This design breakthroughly overcomes the limitation of the low elastic modulus of the aluminum alloy material itself and realizes a significant improvement in the structural performance;

[0015] 2. The chord hub of the present invention is divided into a hub body and an embedding member, which greatly reduces the outer diameter of the circumscribed circle for mold opening and reduces the aluminum extrusion cost compared with the integral extrusion molding;

[0016] 3. The complex node of the present invention uses the method of extrusion plus assembly, which is easier to ensure the fitting accuracy compared with the traditional welding and fastener connection methods, the processing technology is simpler, and the overall strength is higher without the influence of welds;

[0017] 4. The flexibility of the assembly method of the present invention can adjust the position and quantity of the embedding members according to needs, so that the node can be adaptively installed in various parts such as the bottom layer, upper layer, middle layer, and edge, realizing the multi-purpose use of one node;

[0018] 5. The present invention can install two or three layers of grids according to the actual working conditions, has strong adaptability, and does not need to adjust the size of the node according to the working conditions;

[0019] 6. The present invention has a unitized design, can be expanded in both the length and width directions, and can be freely combined;

[0020] 7. The addition of the prestressed steel cable in the present invention eliminates the connection gap and increases the structural resistance. Description of the Drawings

[0021] Figure 1 is the schematic connection diagram of the planar grid of the present invention;

[0022] Figure 2It is a schematic structural diagram of the node component of the present invention when the chord member includes a chord member body and an internal member;

[0023] Figure 3 It is Figure 2 explosion schematic diagram;

[0024] Figure 4 It is the front view of the node component of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the node component of the present invention when the chord member is an internal member;

[0026] Figure 6 It is Figure 5 partial enlarged view of part A;

[0027] Figure 7 It is the overall schematic diagram of the present invention;

[0028] Wherein: 1, web member; 2, insert member; 201, slot; 202, central hole; 203, arc connecting portion; 3, hub body; 4, chord member body; 401, card slot; 5, water tank; 6, internal member; 7, steel cable; 8, chord member; 9, node component; 10, arc groove; 11, pin; 12, lead screw; 13, nut. Specific embodiments

[0029] In order to better understand the purpose, structure and function of the present invention, the following further detailed description of the present invention is made in conjunction with the accompanying drawings.

[0030] As Figures 1 to 7 shown, the present invention provides an aluminum alloy tent with an assembled prestressed planar grid embedded hub node, including a grid structure; the grid structure includes a node component 9 and web members 1, steel cables 7, and chord members 8 connected by the node component 9; the node component 9 is made of aluminum alloy material,

[0031] the node component 9 includes a hub body 3 and an insert member 2; the hub body 3 is sleeved on the chord member 8 and fixed by bolts, and a plurality of the insert members 2 are evenly installed on the outer side surface of the hub body 3, each insert member 2 is provided with a slot 201, and a plurality of pin holes are opened on the slot 201, the pin holes are used for installing pins 11, the web member 1 is provided with a plugging portion and plugged into the slot 201 of the insert member 2 and fixed by the pin 11, and the steel cable 7 is inserted into the slot 201 of the insert member 2 and connected to the pin 11.

[0032] The grid structure can be spliced into multiple layers according to actual needs, Figure 1 shown is the case of 3 layers. Although there seem to be many types of nodes (5 types), actually only 1 type of node is needed, and changing the position and number of the insert members 2 can achieve the functions that can be achieved by different nodes.

[0033] As shown in Figure 2 and Figure 3 , the chord member 8 includes a chord member body 4 and an internal member 6; a plurality of the chord member bodies 4 are connected in series through the internal member 6, and the chord member body 4 is fixed to the internal member 6 by bolts.

[0034] Or

[0035] As shown in Figure 5 , the chord member 8 is composed of the internal member 6.

[0036] As shown in Figure 2 , Figure 3 , Figure 5 , Figure 6 , a plurality of concentric arc-shaped grooves 10 are circumferentially arranged on the outer surfaces of the internal member 6 and the hub body 3, and arc-shaped connecting portions 203 are arranged at the inner ends of the embedding members 2 and are inserted into the arc-shaped grooves 10.

[0037] As shown in Figure 2 and Figure 3 , when the chord member 8 includes the chord member body 4 and the internal member 6, the chord member bodies 4 at both ends clamp and install the embedding member 2 on the hub body 3.

[0038] As shown in Figure 5 and Figure 6 , when the chord member 8 is composed of the internal member 6, at this time, there is no chord member limit for the embedding member 2, and it can be fixed on the hub body 3 by the screw rod 12 and the nut 13. Specifically:

[0039] A central hole 202 is arranged in the arc-shaped connecting portion 203, and the central hole 202 is used for installing the screw rod 12, and the embedding member 2 is clamped and installed on the hub body 3 by the nuts 13 arranged at both ends of the screw rod 12.

[0040] As shown in Figure 3 , the aluminum alloy tent with the embedded hub node of the assembled prestressed planar grid also includes a water trough 5, clamping grooves 401 are arranged at both outer ends of the chord member body 4, and both ends of the water trough 5 are clamped and installed on the chord member body 4 through the clamping grooves 401.

[0041] It can be understood that the present invention is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. An aluminum alloy tent using an assembled prestressed plane grid embedded hub node, comprising a grid structure; characterized in that: The grid structure comprises a node assembly (9) and a web member (1), a steel cable (7) and a chord member (8) connected by the node assembly (9); The node assembly (9) comprises a hub body (3) and an insert (2); the hub body (3) is fixedly mounted on the chord rod (8); a plurality of the inserts (2) are mounted on the outer surface of the hub body (3); each of the inserts (2) is provided with a slot (201); a plurality of pin holes are provided on the slot (201); the pin holes are used to install a plug pin (11); the web (1) is provided with a plug-in portion which is plugged into the slot (201) of the insert (2) and fixed by the plug pin (11); the steel cable (7) is inserted into the slot (201) of the insert (2) and connected to the plug pin (11); The chord rod (8) comprises a chord rod body (4) and an internal component (6); a plurality of the chord rod bodies (4) are connected in series via the internal component (6), and the chord rod bodies (4) and the internal component (6) are fixed; or The chord (8) is composed of an internal component (6).

2. The aluminum alloy tent with embedded hub nodes using assembled prestressed plane grid according to claim 1 is characterized by: The outer surfaces of the built-in component (6) and the hub body (3) are provided with a plurality of concentric arc-shaped grooves (10) along the circumferential direction, and the inner ends of the embedded components (2) are provided with arc-shaped connecting portions (203) for plugging into the arc-shaped grooves (10).

3. The aluminum alloy tent with embedded hub nodes using assembled prestressed plane grid according to claim 2 is characterized by: When the chord rod (8) is composed of an embedded component (6), the arc-shaped connecting portion (203) is provided with a center hole (202), and the center hole (202) is used to install the screw rod (12), and the embedded component (2) is clamped and installed on the hub body (3) through nuts (13) arranged at both ends of the screw rod (12).

4. The aluminum alloy tent with embedded hub nodes using assembled prestressed plane grid according to claim 1 is characterized by: The aluminum alloy tent using the assembled prestressed plane grid embedded hub node also includes a water tank (5), and the two outer ends of the chord body (4) are provided with clamping grooves (401), and the two ends of the water tank (5) are clamped and installed on the chord body (4) through the clamping grooves (401).

Images