Aluminum alloy tent with prefabricated prestressed plane grid embedded hub node

Abstract

An aluminum alloy tent using an assembled prestressed plane grid embedded hub node belongs to the field of tent technology. The node assembly includes a hub body and an insert; the hub body is fixedly mounted on the chord rod, and a plurality of the inserts are installed on the outer side of the hub body, each insert is provided with a slot, and a plurality of pin holes are provided on the slot, and the pin holes are used to install a latch, the web rod is provided with a plug-in portion that is plugged into the insert slot and fixed by a latch, and the steel cable is inserted into the insert slot and connected to the latch. The chord rod hub of the present invention is divided into a hub body and an insert, which greatly reduces the diameter of the circumscribed circle of the mold opening, and reduces the aluminum extrusion cost compared to one-piece extrusion molding; the complex node of the present invention uses an extrusion and assembly method that is easier to ensure the matching accuracy than the traditional welding and fastener connection method, and the processing technology is also simpler, and the overall strength is higher without the influence of welds.

Description

Technical Field

[0001] The invention belongs to the technical field of tents, and in particular relates to an aluminum alloy tent using an assembled prestressed plane grid embedded hub node. Background Art

[0002] Aluminum alloy has the advantages of low density, easy forming and high specific strength, and is widely used in aerospace, weapons industry and other fields. Due to its advantages such as light weight, high strength, easy processing, corrosion resistance and beautiful appearance, large-span aluminum alloy space structures have attracted the attention and favor of architects and structural engineers for their excellent expressiveness and applicability. The connection node of the single-layer aluminum alloy lattice shell is a key component of this type of structure.

[0003] The patent "An aluminum alloy plate node shear-resistant connection structure and its connection method" (application number CN201810229409.9) discloses an aluminum alloy plate node shear-resistant connection structure that uses circular stiffening rods and has no connection or contact between the stiffening rods and the connecting rods. Although this connection structure is simpler to install, construction errors are allowed, and it is more practical, the bending moment and shear force borne by the transfer node are limited, and it cannot provide the structure with sufficiently large bearing capacity and overall stiffness, resulting in the structural span of the lattice shell being limited. Summary of the invention

[0004] In order to solve the problems existing in the above-mentioned prior art, the present invention further provides an aluminum alloy tent using an assembled prestressed plane grid embedded hub node, which can have sufficiently large bearing capacity and overall rigidity.

[0005] The technical solution adopted by the present invention is: The aluminum alloy tent using the assembled prestressed plane grid embedded hub node includes a grid structure; the grid structure includes a node assembly and a web bar, a steel cable, and a chord bar connected by the node assembly; The node assembly includes a hub body and an insert; the hub body is fixedly mounted on the chord rod, and a plurality of the inserts are installed on the outer side of the hub body, each insert is provided with a slot, and a plurality of pin holes are provided on the slot, and the pin holes are used to install a pin, the web is provided with a plug-in portion which is plugged into the insert slot and fixed by the pin, and the steel cable is inserted into the insert slot and connected to the pin.

[0006] Furthermore, the chord rod comprises a chord rod body and an internal component; a plurality of the chord rod bodies are connected in series via the internal component, and the chord rod body and the internal component are fixed.

[0007] Furthermore, the chord rod is composed of built-in parts.

[0008] Furthermore, a plurality of concentric arcuate grooves are arranged on the outer surfaces of the built-in component and the hub body along the circumferential direction, and arcuate connecting parts are arranged at the inner ends of the embedded components to be plugged into the arcuate grooves.

[0009] Furthermore, when the chord rod is composed of an embedded component, the arc-shaped connecting portion is provided with a center hole, and the center hole is used to install a screw rod, and the embedded component is clamped and installed on the hub body by nuts provided at both ends of the screw rod.

[0010] Furthermore, the aluminum alloy tent using the assembled prestressed plane grid embedded hub node also includes a water tank, and the two outer ends of the chord body are provided with card slots, and the two ends of the water tank are mounted on the chord body through the card slots.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. Compared with the traditional aluminum alloy single-layer lattice shell structure, the prestressed plane grid of the present invention cleverly uses prestressing technology, effectively eliminates the gap problem during the assembly process, and significantly enhances the overall rigidity of the grid. This design has overcome the limitation of the low elastic modulus of the aluminum alloy material itself, and achieved a significant improvement in structural performance; 2. The chord hub of the present invention is divided into a hub body and an insert, which greatly reduces the diameter of the circumscribed circle of the mold opening and reduces the aluminum extrusion cost compared with the one-piece extrusion molding; 3. The complex nodes of the present invention use extrusion and assembly methods, which are easier to ensure the matching accuracy than the traditional welding and fastener connection methods. The processing technology is also simpler, and there is no influence of welds, and the overall strength is higher; 4. The flexibility of the assembly method of the present invention can adjust the position and quantity of the embedded parts as needed, so that the nodes can be installed in various parts such as the bottom layer, the upper layer, the middle, and the edge, so as to achieve multiple uses of one node; 5. The present invention can be equipped with 2 or 3 layers of grids according to actual working conditions, with strong adaptability, and no need to increase or decrease the nodes according to working conditions; 6. The unitized design of the present invention can be expanded in length and width and can be freely combined; 7. The addition of the prestressed steel cables of the present invention eliminates the connection gap and increases the structural resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the plane grid connection of the present invention; Figure 2 A schematic diagram of the node assembly structure of the present invention when the chord includes a chord body and an internal component; Figure 3 yes Figure 2 Explosion diagram of Figure 4 It is a front view of a node assembly of the present invention; Figure 5 is a schematic diagram of the node assembly structure of the present invention when the chord rod is a built-in component; Figure 6 yes Figure 5 A magnified view of part A; Figure 7 It is an overall schematic diagram of the present invention; Among them: 1. web; 2. embedded part; 201. slot; 202. center hole; 203. arc-shaped connecting part; 3. hub body; 4. chord body; 401. slot; 5. water tank; 6. built-in part; 7. steel cable; 8. chord; 9. node assembly; 10. arc-shaped groove; 11. pin; 12. screw rod; 13. nut. DETAILED DESCRIPTION

[0013] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0014] like Figure 1 to Figure 7 As shown, the present invention provides an aluminum alloy tent using an assembled prestressed plane grid embedded hub node, including a grid structure; the grid structure includes a node assembly 9 and a web member 1, a steel cable 7, and a chord 8 connected by the node assembly 9; the node assembly 9 is made of aluminum alloy. The node assembly 9 includes a hub body 3 and an insert 2; the hub body 3 is sleeved on the chord rod 8 and fixed by bolts, and multiple inserts 2 are evenly installed on the outer surface of the hub body 3, each insert 2 is provided with a slot 201, and multiple pin holes are provided on the slot 201, and the pin holes are used to install the pin 11. The web 1 is provided with a plug-in part that is plugged into the slot 201 of the insert 2 and fixed by the pin 11, and the steel cable 7 is inserted into the slot 201 of the insert 2 and connected to the pin 11.

[0015] The grid structure can be spliced ​​into multiple layers according to actual needs. Figure 1 The figure shows a three-layer situation. Although it seems that there are many types of nodes (5), only one type of node is actually required. By changing the position and number of the insert 2, the functions that can only be achieved by different nodes can be realized.

[0016] like Figure 2 , Figure 3 As shown, the chord bar 8 includes a chord bar body 4 and an internal component 6; a plurality of the chord bar bodies 4 are connected in series via the internal component 6, and the chord bar bodies 4 are fixed to the internal component 6 via bolts.

[0017] or like Figure 5 As shown, the chord 8 is formed by the inner part 6 .

[0018] like Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, the inner part 6 and the outer surface of the hub body 3 are provided with a plurality of concentric arc grooves 10 along the circumferential direction, and the inner end of each of the embedded parts 2 is provided with an arc connecting portion 203 which is plugged into the arc groove 10 .

[0019] like Figure 2 , Figure 3 As shown, when the chord 8 includes the chord body 4 and the embedded component 6, the chord bodies 4 at both ends clamp the embedded component 2 and install it on the hub body 3.

[0020] like Figure 5 , Figure 6 As shown, when the chord 8 is formed by the built-in component 6, the embedded component 2 has no chord limit and can be fixed on the hub body 3 by the screw rod 12 and the nut 13. Specifically: The arc-shaped connecting portion 203 is provided with a central hole 202 , and the central hole 202 is used to install the screw rod 12 . The insert 2 is clamped and installed on the hub body 3 through nuts 13 provided at both ends of the screw rod 12 .

[0021] like Figure 3 As shown, 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 a card slot 401, and the two ends of the water tank 5 are mounted on the chord body 4 through the card slot 401.

[0022] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances 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 are within the scope of protection of 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 sleeved 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 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 pin (11); the steel cable (7) is inserted into the slot (201) of the insert (2) and connected to the pin (11).

2. The aluminum alloy tent with embedded hub nodes using assembled prestressed plane grid according to claim 1 is characterized by: 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 body (4) and the internal component (6) are fixed.

3. The aluminum alloy tent with embedded hub nodes using assembled prestressed plane grid according to claim 1 is characterized by: The chord (8) is composed of an internal component (6).

4. The aluminum alloy tent with embedded hub nodes using assembled prestressed plane grid according to claim 2 or 3 is characterized in that: 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 each provided with an arc-shaped connecting portion (203) for plugging into the arc-shaped groove (10).

5. The aluminum alloy tent with embedded hub nodes using assembled prestressed plane grid according to claim 4 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) provided at both ends of the screw rod (12).

6. The aluminum alloy tent with embedded hub nodes using assembled prestressed plane grid according to claim 2 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).

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