Hoisting ball joint

Abstract

The utility model discloses a hoisting ball joint, and mainly relates to the field of suspended ceiling hoisting construction. Comprising a spherical fixing node, a spherical fixing node fixing device is arranged at the top of the spherical fixing node, a plurality of rod piece connecting positions are arranged on the spherical fixing node, and a rod piece fixing and extending device is further fixedly arranged at the corresponding position of the spherical fixing node. The utility model has the beneficial effects that compared with the traditional way of enlarging the spherical node, the rod piece fixing and extending device is arranged, so that on one hand, the material is greatly saved, and on the other hand, the additional influence on the load bearing of the top of a building caused by enlarging the node is reduced, and compared with the traditional spherical node, the overall strength is enhanced, and the service life is prolonged. Most importantly, the angle between the two rod pieces can be further reduced compared with a traditional joint, and the feasibility of an additional construction scheme capable of being planned for construction is improved.

Description

Technical Field

[0001] The utility model relates to the field of ceiling hoisting construction, in particular to a hoisting ball node. Background Art

[0002] With the development of building steel structure technology, large-span space steel structures are widely used in various large stadiums, exhibition centers, and commercial buildings because they can achieve rich spatial shapes. Spherical nodes are mainly used to connect components of spatial special-shaped steel structures. They are clean and beautiful and are a type of node that is widely used in large-span space steel structures.

[0003] The current connection method between the spherical node and the rod is to open a plurality of threaded holes on the spherical node, and to provide a connecting bolt at one end of the connecting rod, and to thread the connecting rod to be fixed on the spherical node. The spherical node used in the large-span space steel structure often needs to open a plurality of threaded holes on a spherical node in order to adapt to the different shapes of the venue. This will cause adjacent threaded holes to be too close to each other. If the rod is thicker, there may be interference between the rods, resulting in the inability to install. In order to ensure the number of installation rods for this spherical node, it is often necessary to increase the diameter of the spherical node itself to meet the requirements of space and strength. However, this will make the size and weight larger, time-consuming and labor-intensive, and greatly increase the load-bearing force on the top of the venue. Utility Model Content

[0004] Based on the above problems, the purpose of the utility model is to provide a hanging ball node.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A hanging ball node comprises a spherical fixed node and a fixed extension device, wherein a spherical fixed node fixing device is provided on the top of the spherical fixed node, a plurality of rod connection positions are provided on the spherical fixed node, one end of the fixed extension device is connected to the rod connection position, and the other end is connected to the rod. The fixed extension device is a conical rod, whose small diameter end is connected to the rod connection position, and whose large diameter end is connected to the rod.

[0007] Furthermore, the center line of the fixed extension device points to the center of the spherical fixed node.

[0008] Furthermore, the connection point between the fixed extension device and the spherical fixed node is chamfered.

[0009] Furthermore, a stress buffer plate is provided on the peripheral wall of the fixed extension device, and the connection point between the stress buffer plate and the spherical fixed node is chamfered.

[0010] Furthermore, a plurality of stress buffer plates are provided, and the plurality of stress buffer plates are evenly spaced along the circumference of the fixed extension device.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] Compared with the traditional way of enlarging the spherical node, the utility model greatly saves materials by setting a rod fixing and extending device, while reducing the additional impact on the load-bearing of the top of the building due to the enlarged node. Compared with the traditional spherical node, the overall strength is enhanced. The most important thing is that the conical fixing and extending device allows more rods to be installed on the small ball, increasing the feasibility of additional construction plans that can be planned for construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] 1. Spherical fixed node; 2. Fixing device; 3. Rod connection position; 4. Fixed extension device; 5. Stress buffer plate. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with specific embodiments.

[0016] This utility model is a hanging ball node, please refer to the attached Figure 1 The main structure of the node includes a spherical fixed node 1, a fixing device 2 is provided on the top of the spherical fixed node 1, and the fixing device 2 is used to fix the spherical node on the ceiling. The spherical fixed node 1 is provided with a plurality of rod connection positions 3, which are set according to different requirements. Figure 1 At the rod connection position 3, a special thread is usually used to connect to the rod.

[0017] The most important thing is that a fixed extension device 4 is also provided at the corresponding position on the spherical fixed node 1. The corresponding position here refers to the situation when two rods are adjacent, very close and the angle is too small. Nowadays, there are many kinds of ceiling designs, so it is normal to connect multiple rods at the same node. The traditional way is to enlarge the spherical node, but the overall weight is too heavy, and a lot of materials are wasted. When this happens, we can use a special threaded connection to fix the extension device 4 on the outside of one of the rod connection positions 3 to prevent the two rods from interfering with each other.

[0018] The fixed extension device 4 is an inverted cone rod, whose small diameter end is used to connect to the rod connection position 3, and its large diameter end is used to connect to other rods; even if the fixed extension device 4 is an inverted cone connection, its contact surface with the spherical contact point is larger than the contact surface of the traditional threaded connection. Therefore, after ensuring sufficient strength, the material is minimized and set to an inverted cone structure. The connection point between the inverted cone rod and the spherical fixed node 1 is excessively chamfered, and the corresponding stress concentration position is chamfered to greatly reduce the stress concentration phenomenon. Attention should be paid to this in the manufacturing process.

[0019] At the same time, the center line of the fixed extension device 4 points to the center of the spherical fixed node 1. Figure 1 The dotted line is used to ensure the overall force stability.

[0020] A plurality of stress buffer plates 5 are arranged around the fixed extension device 4. In order to further ensure the strength of the cylindrical fixed rod itself, three plates are normally the best. The three stress buffer plates 5 are evenly spaced along the circumference of the fixed extension device 4. The connection point between the stress buffer plate 5 and the spherical fixed node 1 is excessively chamfered to reduce stress concentration.

[0021] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hanging ball node, characterized in that: The invention comprises a spherical fixed node (1) and a fixed extension device (4); a spherical fixed node (1) fixing device (2) is provided on the top of the spherical fixed node (1); a plurality of rod connection positions (3) are provided on the spherical fixed node (1); one end of the fixed extension device (4) is connected to the rod connection position (3), and the other end is connected to the rod; the fixed extension device (4) is a conical rod, the small diameter end of which is connected to the rod connection position, and the large diameter end of which is connected to the rod.

2. According to claim 1, a hanging ball node is characterized in that: The center line of the fixed extension device (4) points to the center of the spherical fixed node (1).

3. According to claim 1, a hanging ball node is characterized in that: The connection point between the fixed extension device (4) and the spherical fixed node (1) is chamfered.

4. A hanging ball node according to claim 2, characterized in that: A stress buffer plate (5) is provided on the peripheral wall of the fixed extension device (4), and the connection point between the stress buffer plate (5) and the spherical fixed node (1) is chamfered.

5. A hanging ball node according to claim 4, characterized in that: A plurality of the stress buffer plates (5) are provided, and the plurality of stress buffer plates (5) are evenly spaced and arranged along the circumference of the fixed extension device (4).

Images