Connecting joint suitable for large-span dish-shaped grid structure

Abstract

The utility model discloses a connecting node suitable for a large-span dish-shaped grid structure, which comprises an upper ball body, the upper ball body is of a hollow structure, a lower ball body is arranged below the upper ball body, a gap is reserved between the upper ball body and the lower ball body, an angle adjusting structure is arranged between the upper ball body and the lower ball body, and the angle adjusting structure is connected with the upper ball body. The angle adjusting structure is provided with a first rotating ring and a second rotating ring to achieve angle adjustment of the connecting sleeve. According to the connecting joint suitable for the large-span dish-shaped grid structure, the upper ball body and the lower ball body are arranged, the upper ball body and the lower ball body are supported through the supporting rod, meanwhile, the upper ball body and the lower ball body are rotationally connected with the first rotating ring and the second rotating ring correspondingly, and the first rotating ring and the second rotating ring are fixedly provided with the connecting sleeves correspondingly; therefore, the first rotating ring and the second rotating ring can drive the connecting sleeves on the two sides to change angles, and multi-angle connection of the net rack is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of grid connection, in particular to a connection node suitable for a large-span dish-shaped grid structure. Background Technique

[0002] A grid structure refers to a space structure formed by connecting multiple rods in a certain grid form through nodes, which has the advantages of small space stress, light weight, large stiffness, good seismic performance, etc., so it has a wide range of applications. The dish-shaped grid structure is a type of grid structure, which is usually the common roof form of large stadiums, industrial factories, cinemas, waiting halls, etc. in China at present, and has the characteristics of large span, good load capacity and convenient construction.

[0003] At present, in the process of grid connection, the grid and the node are usually connected and assembled according to the design drawings, and the grid and the node are fixed by welding. However, in the process of connecting the dish-shaped grid, the grid needs to be connected at a certain angle. At present, the grid node is usually a prefabricated part with a fixed angle, so it is not suitable for installation in various angle situations. Content of the Utility Model

[0004] The purpose of the utility model is to provide a connection node suitable for a large-span dish-shaped grid structure. The device is provided with a connection sleeve with an adjustable angle, and the grid is connected and installed by using the connection sleeve with an adjustable angle to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A connection node suitable for a large-span dish-shaped grid structure, including an upper sphere, the upper sphere is a hollow structure, a lower sphere is arranged below the upper sphere, there is a gap between the upper sphere and the lower sphere, and an angle adjustment structure is arranged between the upper sphere and the lower sphere. The angle adjustment structure realizes the angle adjustment of the connection sleeve by setting a rotating ring one and a rotating ring two.

[0006] Preferably, the angle adjustment structure includes a rotating ring one, the rotating ring one is rotatably connected to the lower surface of the upper sphere, the rotating ring two is rotatably connected to the upper surface of the lower sphere, a support rod is fixedly arranged on the inner walls of the rotating ring one and the rotating ring two, and both ends of the support rod are rotatably connected to the surfaces of the upper sphere and the lower sphere respectively.

[0007] By adopting the above technical scheme, the angle adjustment of the connection sleeve can be realized by using the angle adjustment structure.

[0008] Preferably, a connection sleeve is fixedly arranged on the surface of the rotating ring one, another connection sleeve is arranged on the surface of the rotating ring two, and 4 connection sleeves are fixedly arranged on the lower surface of the lower sphere, and 2 of the connection sleeves are distributed in a triangle.

[0009] With the above technical solution, the rotation of the first rotating ring and the second rotating ring can drive the connecting sleeve to rotate.

[0010] Preferably, a clamping structure is arranged inside the first rotating ring and the second rotating ring. The clamping structure is provided with a clamping ring and a clamping block to clamp the connecting sleeve after angle adjustment for subsequent welding.

[0011] With the above technical solution, the clamping structure can clamp the clamping ring.

[0012] Preferably, the clamping structure includes a clamping ring. The clamping ring is of a semi-circular ring structure. A toothed groove is arranged on the inner surface of the semi-circular clamping ring. There are 2 symmetrically arranged clamping rings. The 2 clamping rings are respectively fixedly connected to the inner walls of the first rotating ring and the second rotating ring, and the 2 clamping rings are arranged in a vertically staggered manner.

[0013] With the above technical solution, the clamping structure can use the clamping block to clamp the clamping ring.

[0014] Preferably, a clamping block is arranged between the 2 clamping rings. The clamping block is of a cylindrical structure, and a toothed convex block is arranged on the outer surface of the clamping block. The clamping block is in clamping fit with the toothed block on the surface of the clamping ring, and a cylindrical convex block is arranged on the lower surface of the clamping block.

[0015] With the above technical solution, the toothed block on the surface of the clamping block can clamp the clamping ring.

[0016] Preferably, a connecting bolt is rotatably arranged on the upper surface of the clamping block. The connecting bolt is threadedly connected to the surface of the upper sphere. A connecting rod is annularly arranged on the upper surface of the clamping block. The other end of the connecting rod is fixedly connected to the inner wall of the upper sphere. The connecting rod is of a telescopic structure.

[0017] With the above technical solution, the rotation of the connecting bolt can drive the clamping block to move to clamp the clamping ring.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: The connection node applicable to the large-span dish-shaped grid structure:

[0019] 1. The device is provided with an upper sphere and a lower sphere. The upper sphere and the lower sphere are supported by a support rod. At the same time, the upper sphere and the lower sphere are respectively rotatably connected to the first rotating ring and the second rotating ring. The first rotating ring and the second rotating ring are respectively fixedly installed with a connecting sleeve, so that the first rotating ring and the second rotating ring can drive the connecting sleeves on both sides to change the angle, which is convenient for multi-angle connection of the grid.

[0020] 2. The inner walls of the first rotating ring and the second rotating ring of this device are provided with snap rings. The snap rings rotate synchronously with the connecting sleeve. The movement of the snap rings can be used to engage the snap rings, achieving the fixation of the first rotating ring and the second rotating ring, thereby realizing the fixation of the connecting sleeve after the angle is changed, which is convenient for subsequent welding connection;

[0021] 3. The connecting bolt is rotatably arranged on the upper surface of the block of this device. The connecting bolt is threadedly connected to the surface of the upper sphere. At the same time, a telescopic connecting rod is arranged on the upper surface of the block and connected to the inner wall of the upper sphere. Rotating the connecting bolt can drive the block to move and engage the snap ring, and the connecting rod can prevent the block from moving offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a front view structural schematic diagram of the present utility model;

[0023] Figure 2 is a front sectional structural schematic diagram of the upper sphere of the present utility model;

[0024] Figure 3 is a front sectional structural schematic diagram of the first rotating ring and the second rotating ring of the present utility model;

[0025] Figure 4 is a structural schematic diagram of the block and the first rotating ring of the present utility model;

[0026] Figure 5 is a structural schematic diagram of the block and the snap ring of the present utility model;

[0027] Figure 6 is a structural schematic diagram of the rotating structure of the connecting sleeve of the present utility model.

[0028] In the figure: 1, upper sphere; 2, lower sphere; 3, first rotating ring; 4, second rotating ring; 5, support rod; 6, connecting sleeve; 7, snap ring; 8, block; 9, connecting bolt; 10, connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer to Figure 1-6 , the present utility model provides a technical solution: a connection node applicable to a large-span dish-shaped grid structure, including an upper sphere 1, a lower sphere 2, a first rotating ring 3, a second rotating ring 4, a support rod 5, a connecting sleeve 6, a snap ring 7, a block 8, a connecting bolt 9, and a connecting rod 10.

[0031] The upper sphere 1 has a hollow structure. A lower sphere 2 is provided below the upper sphere 1, and there is a gap between the upper sphere 1 and the lower sphere 2. An angle adjustment structure is provided between the upper sphere 1 and the lower sphere 2. The angle adjustment structure uses a first rotating ring 3 and a second rotating ring 4 to achieve angle adjustment of the connecting sleeve 6. The angle adjustment structure includes the first rotating ring 3, which is rotatably connected to the lower surface of the upper sphere 1. The second rotating ring 4 is rotatably connected to the upper surface of the lower sphere 2. Support rods 5 are fixedly arranged on the inner walls of the first rotating ring 3 and the second rotating ring 4. The two ends of the support rod 5 are respectively rotatably connected to the surfaces of the upper sphere 1 and the lower sphere 2. A connecting sleeve 6 is fixedly arranged on the surface of the first rotating ring 3, and another connecting sleeve 6 is arranged on the surface of the second rotating ring 4. Four connecting sleeves 6 are fixedly arranged on the lower surface of the lower sphere 2, and two of the connecting sleeves 6 are distributed in a triangular shape;

[0032] As Figure 1 、 Figure 2 、 Figure 4 and Figure 6 shown, when using this device, hold the connecting sleeves 6 on both sides and rotate. The rotation of the connecting sleeves 6 drives the first rotating rings 3 and the second rotating rings 4 on both sides to rotate respectively on the surfaces of the upper sphere 1 and the lower sphere 2. The rotation of the connecting sleeves 6 on both sides causes the angle between the two connecting sleeves 6 to change, so as to adapt to the installation of grid frames in different situations. When the first rotating ring 3 and the second rotating ring 4 rotate, the support rod 5 plays a supporting role between the upper sphere 1 and the lower sphere 2. After the angle adjustment is completed, connect the connecting sleeve 6 to the grid frame fittings. After the connection is completed, weld the grid frame fittings to the device, thus completing the installation of the grid frame and the connection node.

[0033] A clamping structure is arranged inside the first rotating ring 3 and the second rotating ring 4. The clamping structure uses a clamping ring 7 and a clamping block 8 to clamp the connecting sleeve 6 after angle adjustment for subsequent welding. The clamping structure includes the clamping ring 7, which is a semi-circular ring structure. Tooth-shaped card slots are arranged on the inner surface of the semi-circular clamping ring 7. Two clamping rings 7 are symmetrically arranged, and the two clamping rings 7 are respectively fixedly connected to the inner walls of the first rotating ring 3 and the second rotating ring 4. The two clamping rings 7 are arranged in a vertical offset. A clamping block 8 is arranged between the two clamping rings 7. The clamping block 8 is a cylindrical structure, and tooth-shaped convex blocks are arranged on the outer surface of the clamping block 8. The clamping block 8 is clamped and matched with the tooth-shaped blocks on the surface of the clamping ring 7. A cylindrical convex block is arranged on the lower surface of the clamping block 8. A connecting bolt 9 is rotatably arranged on the upper surface of the clamping block 8, and the connecting bolt 9 is threadedly connected to the surface of the upper sphere 1. Connecting rods 10 are arranged in a ring shape on the upper surface of the clamping block 8, and the other ends of the connecting rods 10 are fixedly connected to the inner wall of the upper sphere 1. The connecting rod 10 is a telescopic structure;

[0034] As Figure 1 、 Figure 2 、 Figure 3 and Figure 5As shown, after the angle adjustment of the connecting sleeve 6 is completed, rotate the connecting bolt 9. The connecting bolt 9 drives the clamping block 8 to move downward. At this time, the downward movement of the clamping block 8 drives the connecting rod 10 to elongate, preventing the movement of the clamping block 8 from deviating. When the clamping block 8 continues to move downward, the tooth blocks on the outer surface of the clamping block 8 engage with the tooth blocks on the inner wall of the clamping ring 7, thereby fixing the clamping ring 7. Since the clamping ring 7 is fixedly connected to the surfaces of the first rotating ring 3 and the second rotating ring 4 respectively, the positions of the first rotating ring 3 and the second rotating ring 4 are fixed, and then the fixing of the connecting sleeve 6 is realized, facilitating subsequent welding connection.

[0035] Working principle: When using the connection node applicable to the large-span dish-shaped grid structure, by using the first rotating ring 3 and the second rotating ring 4 rotatably installed on the surfaces of the upper sphere 1 and the lower sphere 2, the connecting sleeves 6 on both sides can be driven to change the angle, facilitating multi-angle connection of the grid. After the angle adjustment of the connecting sleeve 6 is completed, rotate the connecting bolt 9. The connecting bolt 9 drives the clamping block 8 to move. The clamping block 8 engages with the tooth blocks on the inner wall of the clamping ring 7, thereby fixing the clamping ring 7, and then realizing the fixing of the connecting sleeve 6, facilitating subsequent welding connection. The connecting rod 10 provided on the upper surface of the clamping block 8 can prevent the clamping block 8 from deviating in movement, increasing the overall practicality.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection node applicable to a large-span dish-shaped grid structure, comprising an upper sphere (1), the upper sphere (1) being a hollow structure, a lower sphere (2) being arranged below the upper sphere (1), and a gap being left between the upper sphere (1) and the lower sphere (2), characterized in that: An angle adjustment structure is provided between the upper sphere (1) and the lower sphere (2). The angle adjustment structure is provided with a first rotating ring (3) and a second rotating ring (4) to realize the angle adjustment of the connecting sleeve (6). The angle adjustment structure includes a first rotating ring (3). The first rotating ring (3) is rotatably connected to the lower surface of the upper sphere (1). The second rotating ring (4) is rotatably connected to the upper surface of the lower sphere (2). Support rods (5) are fixedly arranged on the inner walls of the first rotating ring (3) and the second rotating ring (4). The two ends of the support rods (5) are respectively rotatably connected to the surfaces of the upper sphere (1) and the lower sphere (2). A clamping structure is arranged inside the first rotating ring (3) and the second rotating ring (4). The clamping structure is provided with a clamping ring (7) and a clamping block (8) to clamp the connecting sleeve (6) after angle adjustment for subsequent welding. The clamping structure includes a clamping ring (7). The clamping ring (7) is a semi-circular ring structure. Tooth-shaped card slots are arranged on the inner surface of the semi-circular clamping ring (7). Two clamping rings (7) are symmetrically arranged. The two clamping rings (7) are respectively fixedly connected to the inner walls of the first rotating ring (3) and the second rotating ring (4). The two clamping rings (7) are arranged with an offset up and down. A clamping block (8) is arranged between the two clamping rings (7). The clamping block (8) is a cylindrical structure. Tooth-shaped convex blocks are arranged on the outer surface of the clamping block (8). The clamping block (8) is engaged and matched with the tooth blocks on the surface of the clamping ring (7). A cylindrical convex block is arranged on the lower surface of the clamping block (8). A connecting bolt (9) is rotatably arranged on the upper surface of the clamping block (8). The connecting bolt (9) is threadedly connected to the surface of the upper sphere (1). Connecting rods (10) are annularly arranged on the upper surface of the clamping block (8). The other ends of the connecting rods (10) are fixedly connected to the inner wall of the upper sphere (1). The connecting rods (10) are telescopic structures.

2. The connecting node applicable to the long-span dish-shaped grid structure according to claim 1, wherein: A connecting sleeve (6) is fixedly arranged on the surface of the first rotating ring (3). Another connecting sleeve (6) is arranged on the surface of the second rotating ring (4). Four connecting sleeves (6) are fixedly arranged on the lower surface of the lower sphere (2). Two of the connecting sleeves (6) are distributed in a triangular shape.

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